SOLUTION: Differentiate with respect to x : y = x 2 cosx

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Question 862979: Differentiate with respect to x : y =
x 2 cosx
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

y = x^2 cosx

Apply Product Rule: 

dy%2Fdx+=+x%5E2%28-sin%28x%29%29+%2B+cos%28x%29%282x%29 = x(2cosx -xsinx)

Need to Know:

%28d%28c%29%29%2Fdx++=+0+  

d%28sin%28x%29%29%2Fdx+=+cos%28x%29

d%28cos%28x%29%29%2Fdx+=+-sin%28x%29  

d%28tan%28x%29%29%2Fdx+=+sec%5E2%28x%29  

d%28cot%28x%29%29%2Fdx+=+-csc%5E2%28x%29

d%28e%5Ex%29%2Fdx+=+e%5Ex+