cscx-cos^2xcscx=sinx

simplify cscx-cos^2xcscx

=1/sinx-cos^2x/sinx

factorize this

1/sinx(1-cos^2x)

but from identities 1-cos^2x=sin^2x

hence 1/sinx(sin^2x)=sinx

so coscx-cos^2xcscx=sinx

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up