Question

Find the value of A:sin A = cos(A-30)

Answer 1

$\huge{\star}{\underline{\boxed{\red{\sf{Answer :}}}}}{\star}$

We are Given,

→ SinA = Cos(A - 30°)

→ Cos(90° - A) = Cos(A - 30°)

→ 90° - A = A - 30°

→ - 2A = -30° -90°

→ - 2A = -120°

→ 2A = 120°

→ A = 120°/2

→ A = 60°

$\Huge{\boxed{\boxed{\sf{A \: = \: 60^{\circ}}}}}$

Answer 2

Answer:

a =60 degress

Step-by-step explanation:

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