Physics, asked by jagdevsingh1502, 11 months ago

Find 2nd derivative of the following functions
6.) Y= x3 + 4x2 + 5x + 7 7.) Y= x2. Sinx

Answers

Answered by Nachiketman
2

Answer:

6) Y=x³+4x²+5x+7

dY/dx = 3x²+8x+5

d²Y/dx² = 6x +8

7) Y = x²sinx

dY/dx = 2x(sinx) + x²(cosx)

d²Y/dx² = 2x(cosx) + 2sinx + x²(-sinx) + 2x(cosx)

             = 4x cosx + 2sinx - x²sinx

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