Question

If Pn = cos^nO + sin^nO and
Q = cos^nO - sin^nO , then which of the following is/are true.
(A) Pn-P(n-2) = - sin^20 cos^20 P(n-4)
(B) Qn-Q(n-2)=- sin^2o cos^2OQ(n-4)
(C) P4= 1 - 2 sin^20 cos^20
(D) Q4 = cos^20 – sin^20

(Multiple Correct)​

Answer 1

Answer:

optio a is correct

Step-by-step explanation:

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