Use the half-angle formulas to come up with an exact expression for each function value below. You do not have to simplify your answer.

steps below

Step-by-step explanation:

sin (π/4)= cos π/4= 1/√2

tan(π/8) = tan(π/4 / 2) = sin (π/4) / (1 + cos π/4)

cos(π/8) = (√1+cos π/4) / 2

tan(π/16) = (sin π/8) / (1 + cos π/8) = ((√1-cos π/4)/2) / (1 + (√1+cos π/4)/2)

answer by yourhope:

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step-by-step explanation: