Question

if triangle ABC if sin a =9/15 then cosec²A-cot²A
pls answer fast​

Answer 1

Answer:

Given:sinA=9/15

we get the perpendicular and hypotenuse 9 and 15 respectively.

by these we also get Base i.e.12

tanA=9/12

reciprocal of SinA and TanA i.e.CosecA and CotA

value of CosecA=15/9

CotA=12/9

cosec^2-cot^2 (put the values of cosecA and cotA)

we get...

(15/9)^2 - (12/9)^2

(225/81) - (144/81)

taking LCM

81/81=1