hteteaindray1846 hteteaindray1846

22-06-2024
Mathematics

Answered

y=cos^2x. Prove that d^2y by dx^2 4y=2.

Answer :

djp6182583 djp6182583

22-06-2024

Answer:

Step-by-step explanation:

4y = 4 cos^2 x

dy/dx = -8 sin x cos x

d^2y / dx^2 = -8( sin x *-sin x + cos x * cos x)

= -8(cos^2x - sin^2 x)

= 8(sin^2 x - cos^2 x)

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