Use the following conditions to find the exact value of cos(β/2). < a < Tcos B = 3, 0 < B <sin a =%3D

Name: Use the following conditions to find the exact value of cos(β/2). < a
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Description: Use the following conditions to find the exact value of cos(β/2). < a < Tcos B = 3, 0 < B <sin a =%3D

Given: cosβ=513; 0<β<π2 we know that cos2x=1+cos2x2…

Answered: < a < T cos B = 3, 0 < B < sin a = %3D

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter10: Inequalities

Section10.1: Order Of Real Numbers

Problem 8OE

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Use the following conditions to find the exact value of cos(β/2).

Expert Solution

Step 1

Given: $\cos β = \frac{5}{13}; 0 < β < \frac{π}{2}$

we know that

$\cos^{2} x = \frac{1 + \cos 2 x}{2} . . (1)$

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