Math, asked by Sonypreety123, 1 month ago

If sina=cos2a,Find the acute value of a

Answers

Answered by sachinjat709

0

Answer:

33.33

Step-by-step explanation:

Sina=cos(90-a)

then

cos(90-a)=cos2a

(comparison of both sides)

90-a=2a

90=3a

then

a=90/3

a=33.33

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