Math, asked by kumarankityadav100, 9 months ago

If sin a + cos a = p, then what is cos^2 (2a)
equal to ?
(a) p2
(b) p2-1
(c) p’2 - p2
(d) p2+1

Answers

Answered by pumpkin99

1

Answer:

Step-by-step explanation:

d

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