CBSE BOARD X, asked by AliVatsal5995, 10 months ago

Prove that (cosecA-cotA)^2 = 1-cosA/ 1+cosA

Answers

Answered by shivasharan2002
0

Answer:

solution is in the pic plz refer it

Explanation:

whenever you get a problem where u need to prove the question first try to express every trigonometric relation in sine and cosine form and simply it . Most of the time u willget the result .. havr a nice day bro ... :)

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Answered by sandy1816
0

✪( {cosecA - cotA})^{2}  \\  \\  = ( { \frac{1 - cosA}{sinA} })^{2}  \\  \\  =  \frac{( {1 - cosA})^{2} }{ {sin}^{2} A}  \\  \\  =  \frac{( {1 - cosA})^{2} }{1 -  {cos}^{2}A }  \\  \\  =  \frac{1  - cosA}{1 + cosA}

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