Math, asked by ammulokesh055, 1 year ago

if cotA+ cosecA = 3/5 find cosec A

Answers

Answered by saurav01234567890
1

K so here u go....

cosecA + cotA =  \frac{3}{5}   ........[1]

Now,

 cosec^{2}   -  cot^{2}   = 1

⇒ (cosecA + cotA)(cosecA - cotA) = 1

 \frac{3}{5}  (cosecA - cotA) = 1

⇒ cosecA - cotA =  \frac{5}{3}  ...........[2]

Adding [1] and [2], we get

2 cosecA =  \frac{3}{5}   +  \frac{5}{3}  

⇒ 2 cosecA =  \frac{34}{15}  

⇒ cosecA =  \frac{17}{15}  

CHEERS!

Similar questions