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February 28, 2015

February 28, 2015

Posted by **john** on Tuesday, February 21, 2012 at 7:42pm.

Find the first derivative, second derivative, third fourth, fifth, sixth, seventh and eighth derivative.

Use the results to find the twelfth and fifteenth derivative.

Write an expression for each of the following derivatives

f^(2n)(x)

F^(2n+1) (x)

- calculus -
**Reiny**, Tuesday, February 21, 2012 at 8:19pmsin 2x= 2 sin x cos x

2cos2x = 2(sinx)(-sinx) + 2cosx(cosx)

cos2x = cos^2 x - sin^2 x

1st derivative:

-2sin2x = 2(cosx)(-sinx) -2sinx(cosx)

sin2x= -2sinxcosx

2nd derivative:

2cos2x = -2sinx(-sinx) - 2cosx(cosx)

cos2x = sin^2x - cos^2x

mmmhh?

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