13 sin
simplify
3‐⁵X 10‐⁵ X 12⁵/5-⁷x6
-⁵
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Answer:
sorry dont know but tell me next time
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Answer:
sin 2A = 2 sinA cosA
consider A as theta as there is no symbol for theta in keyboards!!
As we know,
sin(A+B)= sin A cos B+ cos A sin B
if A=B,
sin(A+A)= sin A cos A+ cos A sin A
sin 2A= 2 sin A cos A
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