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471

Q:

$${\sqrt{1-cosA\over{1+cosA}}}$$ का क्या मान है?

  • 1
    cosecA-sinA
  • 2
    cosecA+cotA
  • 3
    secA-cotA
  • 4
    secA+cotA
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Answer : 1. "cosecA-sinA"

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