1. Prove the standard identity sec2θ - tan2θ = 1 by using sin2θ + cos2θ = 1?
LHS = sec2θ - tan2θ
= 1/cos2θ - sin2θ/cos2θ
= (1 - sin2θ)/cos2θ
There is one paper of two and a half hours duration carrying 80 marks and Internal Assessment of 20 marks. The paper is divided into two sections: Section I (40 marks) and Section II (40 marks).
Section I consists of compulsory short answer questions. In Section II, you are required to answer four out of seven questions.COM_CONTENT_READ_MORE_TITLE