Electric Circuit Analysis MCQs – Certification Test 306

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MCQ: 306

Sin a sin b is equals to

1/2cos(a-b)-1/2cos(a+b)
1/2sin(a+b)+1/2sin(a-b)
1/2cos(a+b)+1/2cos(a-b)
2sin1/2(a+b)+cos1/2(a-b)

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