Math, asked by noyonikagoswami, 4 months ago

if 4 sin^2 2a-3=0 then find 3 cos^2 3a

Answers

Answered by sahe007

0

Step-by-step explanation:

Answer

4cos2A=3

cos2=43

cosA=23 ....(Neglecting the negative value)

cosA=cos30

A=30∘

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