Question

prove (cos^2 theta -1)(cot^2 theta+1)+1=0 WRITE IN DETAILED WAY​

Answer 1

(cos^2 theta -(sin^2theta+cos^2theta) ( cosec^2theta) +1=0

then cos^2 thetha will be getting cancelled cz one is one is positive and another is negative

-sin^2 theta ×cosec^2theta +1=0

and sin^2theta ×cosec^2 theta is 1 as from the formula if you break cosec^2 theta it will become 1/ sin^2 theta

-1 +1 will be getting cancelled and it will be equal to 0

hope this will help you