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Cos 240. Find the Exact Value cos 240 cos 240 cos 240 Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. And your original calculation 6 sin 240 i cos 240 3 3 3 i and conclusion were perfectly correct. The reference angle for 240 is 60 since 240 180 60 60 is an angle of one of the standard triangles with. The angle of θ 240 4 π 3 lies in quadrant III and the value of r 6 is positive so no flipping over the origin and the point stays in quadrant III end of story.
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Cos 40 cos 80 cos 160 cos 240 2cos frac80402 cos frac80-402 2cos frac2401602 cos frac240-1602 2cos 60 cos 20 2cos 200 cos 40 2 12 cos 20 2cos 180 20 cos 40 cos 20 - 2cos 20 cos 40 cos 20 - cos 40 20 cos 40 - 20 cos 20 - cos 60 cos 20 - cos 60. Find the Exact Value cos 240 cos 240 cos 240 Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Cos 240 -12. Cos60 - cos 60 The exact value of cos60 cos 60 is 1 2 1 2. Cos A cos 240 A cos 240 A Using the formula cos A B cos A B 2 cos A cos B cos A 2 cos 240 cos A. Cos 240 can be expressed as cos270 30 Cos 240 cos 270-240 Sin 30 12.
Concept Notes Videos 320.
Cos60 1 2. Here I have applied cos270 - x -sinx identity to find the value of cos240. Vipin Verma Meritnation Expert added an answer on 11114 cos 40 cos80 cos 160. 240 is in the 3rd quadrant so either by CAST or noting that the x-side of the associate triangle is negative cos240 cos60 cos240 1 2. Advertisement Remove all ads. Cos60 - cos 60 The exact value of cos60 cos 60 is 1 2 1 2.
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Cos 40 Cos 80 Cos 160 cos 240 want a step by step answer4080160240 are degrees. Advertisement Remove all ads. And your original calculation 6 sin 240 i cos 240 3 3 3 i and conclusion were perfectly correct. Here I have applied cos-x cosx identity to find the value of cos -240. Make the expression negative because cosine is negative in the third quadrant.
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We know cos-x cosx as cosx is an even function so cos-240 cos240 Now cos240 cos 90330 -sin 30 12. Cos 40 Cos 80 Cos 160 cos 240 want a step by step answer4080160240 are degrees. Cos300 Cos 270 30 Sin30 12. Answer verified by Toppr. The angle of θ 240 4 π 3 lies in quadrant III and the value of r 6 is positive so no flipping over the origin and the point stays in quadrant III end of story.
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Question Bank Solutions 6792. Get Instant Solutions 24x7. The result can be shown in multiple forms. Concept Notes Videos 320. Vipin Verma Meritnation Expert added an answer on 11114 cos 40 cos80 cos 160.
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Cos A 1 2 cos 270 30 cos A 1 2 -sin 30 cos A 1 2 12 cos A 1 1 0. Make the expression negative because cosine is negative in the third quadrant. 240 is in the 3rd quadrant so either by CAST or noting that the x-side of the associate triangle is negative cos240 cos60 cos240 1 2. Vipin Verma Meritnation Expert added an answer on 11114 cos 40 cos80 cos 160. We have to find the value of cos 240.
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Cos60 1 2. We know cos-x cosx as cosx is an even function so cos-240 cos240 Now cos240 cos 90330 -sin 30 12. Cos300 Cos 270 30 Sin30 12. Answer verified by Toppr. Here I have applied cos-x cosx identity to find the value of cos -240.
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Cos 40 Cos 80 Cos 160 Cos 240 - Mathematics. Cos60 - cos 60 The exact value of cos60 cos 60 is 1 2 1 2. The URL of the video. Cos 40 Cos 80 Cos 160 Cos 240 CBSE CBSE Arts Class 11. 1 2 - 1 2.
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Make the expression negative because cosine is negative in the third quadrant. Concept Notes Videos 320. Here I have applied cos270 - x -sinx identity to find the value of cos240. Answer verified by Toppr. Cos A cos 240 A cos 240 A Using the formula cos A B cos A B 2 cos A cos B cos A 2 cos 240 cos A.
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Advertisement Remove all ads. Concept Notes Videos 320. Advertisement Remove all ads. Cos60 - cos 60 The exact value of cos60 cos 60 is 1 2 1 2. CosA cos 240-Acos 240A0.
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We know cos-x cosx as cosx is an even function so cos-240 cos240 Now cos240 cos 90330 -sin 30 12. CosA cos 240-Acos 240A0. Advertisement Remove all ads. Cos 240 can be expressed as cos270 30 Cos 240 cos 270-240 Sin 30 12. Click hereto get an answer to your question cos A COS240 A cos240- A Join Login 11th Maths Trigonometric Functions Trigonometric Functions of Sum and Difference of Two angles cos A COS240 A cos.
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Answer verified by Toppr. Advertisement Remove all ads. Cos 40 cos 80 cos 160 cos 240 2cos 24080 cos 24080 cos18020cos18060 2cos60cos20cos20cos60 cosC cosD 2cos 2CD cos 2CD cos180θ cosθcos180θ cosθ 2 21 cos20cos20 21 cosθ cosθ cos20cos20 21 21. We have to find the value of cos 240. Cos 40 Cos 80 Cos 160 cos 240 want a step by step answer4080160240 are degrees.
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Cos 240 can be expressed as cos270 30 Cos 240 cos 270-240 Sin 30 12. The Trignometric Table of sin cos tan cosec sec cot is useful to learn the common angles of trigonometrical ratios from 0 to 360. We have to find the value of cos 240. 1 2 - 1 2. Question Bank Solutions 6792.
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Cos 240 -12. Answer verified by Toppr. CosA cos 240-Acos 240A0. 1 2 - 1 2. Make the expression negative because cosine is negative in the third quadrant.
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Cos 240 -12. Cos60 - cos 60 The exact value of cos60 cos 60 is 1 2 1 2. Advertisement Remove all ads. Cos A COS240 A cos240- A Answer. Risolvi i problemi matematici utilizzando il risolutore gratuito che offre soluzioni passo passo e supporta operazioni matematiche di base pre-algebriche algebriche trigonometriche differenziali e molte altre.
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The angle of θ 240 4 π 3 lies in quadrant III and the value of r 6 is positive so no flipping over the origin and the point stays in quadrant III end of story. Here I have applied cos270 - x -sinx identity to find the value of cos240. Cos60 - cos 60 The exact value of cos60 cos 60 is 1 2 1 2. Upvote 0 Was this answer helpful. And your original calculation 6 sin 240 i cos 240 3 3 3 i and conclusion were perfectly correct.
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Advertisement Remove all ads. In this video we learn to find the value of cos240. The URL of the video. And your original calculation 6 sin 240 i cos 240 3 3 3 i and conclusion were perfectly correct. Concept Notes Videos 320.
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And your original calculation 6 sin 240 i cos 240 3 3 3 i and conclusion were perfectly correct. Cos 240 cos 240 Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Select degrees or radians in the drop down box and calculate the exact cos 240 value easily. Get Instant Solutions 24x7. In this video we learn to find the value of cos240.
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Make the expression negative because cosine is negative in the third quadrant. The angle of θ 240 4 π 3 lies in quadrant III and the value of r 6 is positive so no flipping over the origin and the point stays in quadrant III end of story. Cos A 1 2 cos 270 30 cos A 1 2 -sin 30 cos A 1 2 12 cos A 1 1 0. Select degrees or radians in the drop down box and calculate the exact cos 240 value easily. The result can be shown in multiple forms.
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Cos 240 can be expressed as cos270 30 Cos 240 cos 270-240 Sin 30 12. Answer verified by Toppr. So Sin780 Sin480 Cos240 Cos300 3² 2² -1 1 2². The Trignometric Table of sin cos tan cosec sec cot is useful to learn the common angles of trigonometrical ratios from 0 to 360. Here I have applied cos270 - x -sinx identity to find the value of cos240.
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