I Find the second derivative(y") of the following functions and simplify the final results. 1. y = x3 – x²cosx + 2xsinx + 2cosx 2 sin x – 1 2. y = cosx+ 2 3. tan(xy) + xy = 0 4. y = xcosx 5. y = xArctanx - In /1+x² 6. y = In (e* + e*) 7. y = tan e3x + etan3x 8. y = In(x + Vx² +1) 2+x) 9 y = Arctan( 1- 2x 10. x = Cos': y = sin't

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