Math, asked by kishan721, 1 year ago

If cos2'a' =sin4'a' where 2'a' and 4'a' are acute angles, then find the value of 'a'

Answers

Answered by shagufta2219

3

Answer:

a=15

Step-by-step explanation:

cos 2a=sin4a

cos2a=cos(90°-4a)

2a+4a=90°

6a=90°

a=90°/6

a=15°

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