Question

sin 3A = Cos A-2 find A​

Answer 1

Answer:

A=46

Step-by-step explanation:as we know cosA=sin(90-A)

cos(90-3A)=cos(A-2)

90-A=A-2

2A=92

A=46

Answer 2

$\huge\mathfrak{Heya\: Mate!!!}$

HeRe i$ uR aNsWeR✔✔

$\huge{Question}$:-

➡sin 3A = Cos A-2 find A

$\huge{Solution}$:-

➡Given:-

➡sin 3A = Cos A-2

➡Cos(90 - 3A) = Cos A - 2

➡{sin A = Cos(90-A)}

➡90 - 3A = A - 2

➡90+2 = A+3A

➡92 = 4A

➡A = 23

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