Question

Cosec(6b+pi/8)=sec(2b-pi/8)​

Answer 1

Explanation:

cosec( 6b+ pie/8)=sec(2b-pie/8)

1/ sin( 6b +pie/8)=1/sec(2b-pie/8)

cos(2b-pie/8)=sin(6b-pie/8)

cosX =sin(pie/2-x)

sin(pie/2-2b+pie/8)=sin(6b+pie/8)

pie/2-2b+pie/8=6b+pie/8

pie/2=8b

b = pie/16