Question

if sin 3A is equals to Cos A minus 26,3A is an acute angle value of A is​

Answer 1

Step-by-step explanation:

sin ( 3A)= cos (A-26)

sin (3A) can be written as cos (90-3A)

cos (90-3A) = cos ( A-26)

simplify the values

90-3A= A-26

4A = 116

A= 29

therefore A = 29

Answer 2

Answer:

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