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If asin +bcos=c then find asin-bcos …

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If asin +bcos=c then find asin-bcos =?
  • 1 answers

Vijendra Gupta 6 years ago

Let asinA - bcosA =x Square both side both equations and add them. Using identity sin2A + cos2A = 1 We get a2 + b2 = c2 + x2 x = ✓a2 + b2 - c2
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