Using the exact value cos(pi/4) = 1/square root of 2 and a trigonometric formula, show that
sin (pi/8) = (square root of (2 - Square root of 2)/2.
Using exact value cos(pi/6) = (square root of 3)/2 and a double angle formula to obtain an expression for the exact value of sin(pi/12)© BrainMass Inc. brainmass.com February 24, 2021, 2:30 pm ad1c9bdddf
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Using the exact value cos(pi/4) = 1/square root of 2 and a trigonometric formula, ...
The expert examines trigonometric formula square roots. The exact value of a trigonometric function is given.