Math, asked by hemudasta, 10 months ago

cos 2a/1+sin2a = tan(π/4-a)

Answers

Answered by vanjarapusriramya

0

Step-by-step explanation:

formulas to be used

cos 2a=1-tan^2a/1+tan^2a

sin2a=2tana/1+tan^2a

(a+b)^2=a^2+b^2+2ab

a^2-b^2=(a-b)(a+b)

expand LHS and simply by using formulas

check the pic for solution

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