Math, asked by tirth317, 1 year ago

can you please solve the given question​

Attachments:

Answers

Answered by thakurji80
2

Answer:

Hii mate your solution

Attachments:
Answered by Anonymous
13

SOLUTION

cosec A+ cot A= p.......(1)

Now,

 =  &gt; cosec {}^{2} </strong><strong>A</strong><strong>- cot {}^{2} </strong><strong>A</strong><strong>= 1

=)(cosec A+ cot A)(cosec A- cot A)= 1

=)p(cosec A - cot A)= 1

=) cosec A- cot A= 1/p........(2)

Adding (1) & (2), we get

 =  &gt; 2 \: cosec \: </u></strong><strong><u>A</u></strong><strong><u> =  p +  \frac{1}{p}  \\  =  &gt; cosec \: </u></strong><strong><u>A</u></strong><strong><u> =  \frac{ {p}^{2} + 1 }{2p}  \\  =  &gt; sin \: </u></strong><strong><u>A</u></strong><strong><u> =  \frac{1}{cosec \: </u></strong><strong><u>A</u></strong><strong><u>}  =  \frac{2p}{ {p}^{2}  + 1}  \\  \\  =  &gt; cos \: </u></strong><strong><u>A</u></strong><strong><u> =  \sqrt{1 -  {sin}^{2} } </u></strong><strong><u>A</u></strong><strong><u> =   \sqrt{1 -  \frac{4 {p}^{2} }{( {p}^{2} + 1) {}^{2}  } }  =   \sqrt{ \frac{ {p}^{4}  + 1 - 2 {p}^{2} }{( {p}^{2} + 1) {}^{2}  } }  \\  \\  =  &gt;  \sqrt{ \frac{( {p}^{2} - 1) {}^{2}  }{( {p}^{2}  + 1) {}^{2} } }  =  \frac{ {p}^{2}  - 1}{ {p}^{2} + 1 }

hope it helps ☺️

Similar questions