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GROUPS:
Mathematica
Calculus
I get the wrong answer for the Derivative of Sin[x]
Jose Martinez
Jose Martinez
Posted
11 years ago
I used
f[x_] = (x^3 + 2 x^2 + 15 x + x)*Sin[ Pi* x];
Derivative [1][f]
gave a wrong answer. The Derivative of Sin x is Cos x NOT zero. What is wrong?
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Jose Martinez
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Teoman Ozturk
Teoman Ozturk
Posted
11 years ago
I think you used for the derivation this expression:
D[f, x]
But the right expression must be like this:
D[f[x], x]
POSTED BY:
Teoman Ozturk
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11 years ago
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