The identity is verified. $(1+sin~θ)(1-sin~θ)=cos^2θ$
Work Step by Step
Use: $sin^2θ+cos^2θ=1$ $cos^2θ=1-sin^2θ$ $(1+sin~θ)(1-sin~θ)=1-sin^2θ=cos^2θ$
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.