Question

find the value of sin 15- sin 75​

Answer 1

Answer:

Answer:2 sin A sin B = cos (A – B) – cos (A + B) ∴ 2 sin 75° sin 15° = cos (75° - 15°) – cos (75° + 15°) = cos 60° + cos 90° = 12+012+0 = 12

Answer:2 sin A sin B = cos (A – B) – cos (A + B) ∴ 2 sin 75° sin 15° = cos (75° - 15°) – cos (75° + 15°) = cos 60° + cos 90° = 12+012+0 = 12Step-by-step explanation:

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Answer 2

Formula used :

$sin \: x - sin \: y = 2 \: cos( \frac{x + y}{2} )sin( \frac{x - y}{2} )$

-√2 is the answer ✔️

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