KcetTrigonometric Ratios And IdentitiesKCET 2025MCQ+1 / -02025Which of the following is not correct?A$\cos 5 \pi=\cos 4 \pi$B$\sin 2 \pi=\sin (-2 \pi)$C$\sin 4 \pi=\sin 6 \pi$D$\tan 45^{\circ}=\tan \left(-315^{\circ}\right)$Check AnswerClear SelectionReveal AnswerShow Explanation