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really no s in it. but v have to differentiate according to s. means let y=g(s), find dy/ds

my answer is
pi(dk/ds) (cos kpi) but the actual answer is 0.

it doesn't state k is a constant. why k cannot treat that has relation with s?

2007-04-08 07:38:46 · 4 answers · asked by ahyeh85 1 in Science & Mathematics Mathematics

4 answers

technically your answer is correct, if it is not given to you that k is a constant then the answer would be:
cos(k* pi)* pi* (dk/ds)

However, as in all math problems there is a certain abuse of notation and letters like k and c are normally taken to be constants.

2007-04-13 14:20:37 · answer #1 · answered by marvin0258 3 · 0 0

g(s) is a numrer,a constant,so the solution is 0.

2007-04-08 07:42:58 · answer #2 · answered by murnau 3 · 0 1

s does not appear and both summands are constant so the derivative ia always zero

2007-04-08 08:15:56 · answer #3 · answered by santmann2002 7 · 0 1

Since there is no s, the whole thing is a constant.

2007-04-08 07:41:01 · answer #4 · answered by mathematician 7 · 2 2

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