This question is from trigonometry topic – trigonometric identities in which we have to prove that (secθ-tanθ)/(secθ+tanθ) = cos²θ/(1+sinθ)²
RS Aggarwal, class 10, chapter 13A, question no 20(ii).
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.