Question

Please answer this ;

Q.5

Answer 1

Answer: 10°

Step-by-step explanation:

Answer 2

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⭐⭐⭐⭐⭐ ANSWER ⭐⭐⭐⭐⭐
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First of all, we have to know that :

⏩ Sin (90° - theta) = Cos theta.

⏩ Cos (90° - theta) = Sin theta

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*⃣ STEP-BY-STEP SOLUTION *⃣
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Sin 5 theta = Cos 4 theta

=> Sin 5 theta = Sin (90°-4 theta)

=> 5 theta = 90° - 4 theta

=> 5 theta + 4 theta = 90°

=> 9 theta = 90°

=> theta = 90°/9 = 10°

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⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐

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