Mathematics

Problem

To verify the identity

(\sec\theta - 1)(\sec\theta + 1) = \tan^2\theta

, which side is generally simpler to start simplifying? a) Either side requires the same effort b) Right-hand side

\tan^2\theta

c) Left-hand side

(\sec\theta - 1)(\sec\theta + 1)

d) The identity cannot be verified with fundamental identities