Math, asked by arvindrathi, 2 months ago

If sin3A = cos(A - 10°), where 2A is an acute angle, find the value of A.

Answers

Answered by sayalivinekari

2

Answer:

sin3A = cos (90- 3A)

cos ( 90-3A) = cos (A - 10)

90- 3A = A- 10

100 = 4 A

A = 25

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