Weird answer for d(sin(sin(x)))/dx

07292018, 01:11 PM
Post: #1




Weird answer for d(sin(sin(x)))/dx
Prime 2.0.0.13865 gives a bizarre form of the derivative of sin(sin(x)): I get (1/2)*cos(sin(x)+x) + (1/2)*cos(sin(x)+x). OK it's correct but I'd expect cos(sin(x))*cos(x) (straightforward chain rule). Getting to that form doesn't work with simplify() and I've not played around with the other trigrewrite functions.


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Messages In This Thread 
Weird answer for d(sin(sin(x)))/dx  ettlz  07292018 01:11 PM
RE: Weird answer for d(sin(sin(x)))/dx  Tim Wessman  07292018, 01:13 PM
RE: Weird answer for d(sin(sin(x)))/dx  ettlz  07292018, 01:18 PM
RE: Weird answer for d(sin(sin(x)))/dx  parisse  07292018, 01:38 PM
RE: Weird answer for d(sin(sin(x)))/dx  Aries  07292018, 02:21 PM
RE: Weird answer for d(sin(sin(x)))/dx  Komanguy  07292018, 04:06 PM
RE: Weird answer for d(sin(sin(x)))/dx  Tim Wessman  07292018, 03:57 PM
RE: Weird answer for d(sin(sin(x)))/dx  Komanguy  07292018, 04:12 PM
RE: Weird answer for d(sin(sin(x)))/dx  DrD  07292018, 04:19 PM
RE: Weird answer for d(sin(sin(x)))/dx  Komanguy  07292018, 04:25 PM
RE: Weird answer for d(sin(sin(x)))/dx  DrD  07292018, 05:43 PM

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