Math, asked by shambhavips4, 2 months ago

1+cosA/1-cosA=(cosecA+cotA)2​

Answers

Answered by siddhigujarathi48
1

Step-by-step explanation:

sry I don't know the ans for your que

Answered by arshan0786ansari
2

Step-by-step explanation:

 \frac{1 +  cosA }{1 -  cosA }  =  {( cosec +  cotA)  }^{2}

Taking L.H.S

\frac{1 +  cosA }{1 -  cosA }

\frac{1 +  cosA }{1 -  cosA }   \times \frac{1 +  cosA }{1  +  cosA }

 \frac{ { (1 + cosA)}^{2} }{ {1} -  { cosA}^{2}  }

 \frac{ { (1 + cosA)}^{2} }{   {  sin}^{2} A}

 ({ \frac{1 +  cosA }{ sinA } )}^{2}

  {( \frac{1}{ sinA }  -  \frac{ cosA }{ sinA } )}^{2}

 ({cosecA -  cotA )}^{2}

Hence prove....

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