how can i derive sin(x) ?

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mohammad imad
mohammad imad 2018-3-20
回答： Walter Roberson 2018-3-20
hello there I have problem with derivation of sin(x)
syms x
diff(sin(x))
ans
cos(x)
but I want the answer to be xdot*cos(x), can you tell me how can i do it? ,please

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Walter Roberson
Walter Roberson 2018-3-20
syms x(t)
diff(sin(x))

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