Prove that Sec A (1-sin A)(sec A+ tan A) = 1Submitted on 7/2/2024 | Answered by Vandana Rana
Answer :
L.H.S =Sec A (1- sinA)(sec A +tan A) =1/cos A(1-sin A)(1/cos A+sin A/cos A) =1/cos A(1-sin A)(1+sin A)/cos A =(1-sin² A)/cos² A =cos²A/cos²A =1
1 =R . H. S. =L. H. S=R. H. S.