KCET · Maths · Trigonometric Ratios & Identities
Which 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 \(\tan 45^{\circ}=\tan \left(-315^{\circ}\right)\)
Answer & Solution
Correct Answer
(A) \(\cos 5 \pi=\cos 4 \pi\)
Step-by-step Solution
Detailed explanation
\(\cos 5 \pi \neq \cos 4 \pi\)
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