Electric Circuit Analysis MCQs – Certification Test 94

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MCQ 94: Cos a+cos b=:

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

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Trigonometric Identities MCQs App & e-Book – Electric Circuit Analysis Textbook Tests

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