Question

Select the correct value of the trigonometric expression: $cos^2(\frac{\pi}{8})$ $\frac{2+\sqrt{3}}{6}$ $\frac{2+\sqrt{6}}{4}$ $\frac{2+\sqrt{2}}{2}$ $\frac{2+\sqrt{2}}{4}$

          Select the correct value of the trigonometric expression: $cos^2(\frac{\pi}{8})$ 
$\frac{2+\sqrt{3}}{6}$
$\frac{2+\sqrt{6}}{4}$
$\frac{2+\sqrt{2}}{2}$
$\frac{2+\sqrt{2}}{4}$

Select the correct value of the trigonometric expression: cos^2((π)/(8))
(2+√(3))/(6)
(2+√(6))/(4)
(2+√(2))/(2)
(2+√(2))/(4)

Added by Ryan T.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Kathleen Carty

12/08/2023

Step 1

Step 1: We know that cos(π/8) = √(2+√2)/2. Show more…

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Select the correct value of the trigonometric expression: cos² ( π 8 ) 2+√3 6 2+√6 4 2+√2 2 2+√2 4

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Question

Select the correct value of the trigonometric expression: $cos^2(\frac{\pi}{8})$ $\frac{2+\sqrt{3}}{6}$ $\frac{2+\sqrt{6}}{4}$ $\frac{2+\sqrt{2}}{2}$ $\frac{2+\sqrt{2}}{4}$

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