Question

If cot x=7/8, Evaluate (1+sinx)(1-sinx)/(1+cosx)(1-cosx).​

Answer 1

Step-by-step explanation:

Given,

cot x=7/8

cosx/sinx=7/8

hence,cos x=7

sin x=8

so,(1+8)(1-8)(1+7)(1-7)=9×(-7)×8×(-6)

=(-63)×(-48)

=3024