Ask a New Question

If y=2xsin2x+cos2x, find d²y/dx² if x=2p/3 in exact value

1 answer

y' = 2sin2x + 4xcos2x - 2sin2x = 4xcos2x
y" = 4cos2x - 8xsin2x

so, just plug in your value for x ...

Ask a New Question or answer this question.

Similar Questions

Please help!!!!!!!!!!! Find all solutions to the equation in the interval [0,2π).8. cos2x=cosx 10. 2cos^2x+cosx=cos2x Solve
1. 5 answers
If sinx = 1/4 Find the exact value of cos2xI used the formula for double angle identities : cos2x = 1-2sin^2x and got the answer
1. 1 answer
Hello! Can someone please check and see if I did this right? Thanks! :)Directions: Find the exact solutions of the equation in
1. 1 answer
Solve the equation of the interval (0, 2pi)cosx=sinx I squared both sides to get :cos²x=sin²x Then using tri indentites I came
1. 4 answers

more similar questions