"If `acottheta+b""c o s e c""theta=p` and `bcottheta+a""c o s e c""theta=q` , then `p^2-q^2=`
Channel: Doubtnut
Date: 2020-06-28

If `acottheta+b"c o s e c"theta=p`
 and `bcottheta+a"c o s e c"theta=q`
 , then `p^2-q^2=`
 
 (a)`a^2-b^2`
 (b) `b^2-a^2`
 (c) `a^2+b^2`
 (d) `b-a`