Question

4. If sin(3∅) = cos 45º, where is an acute angle, then find the value of ∅.
∅-theta​

Answer 1

Answer:

15°

Step-by-step explanation:

cos 45 = 1 / root 2

sin 45 = 1/ root 2

sin 45 = sin 3 theta

theta = 15°

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