Question

13. The value of O for which sin 30 = cos (0 - 6) is ...............
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Answer 1

Answer:

Φ=24°

Step-by-step explanation:

cos(90-3Φ)=cos(Φ-6)

90-3Φ=Φ-6

4Φ=96

Φ=24°

Answer 2

Answer:

sin 3A = cos ( A - 6° )

Now sin 3A = cos ( 90° - 3A )

Step-by-step explanation:

=> cos ( 90° - 3A ) = cos ( A - 6° )

ON COMPARING BOTH SIDES WE GET

90° - 3A = A - 6°

- 4A = - 96°

A = -96°/-4

A = 24°

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