- #1
Khayyam89
- 7
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Homework Statement
I need in proving that the derivative (d[tex]^{n}[/tex]/dx[tex]^{n}[/tex])(sin4x + cos4x) = 4n-1 cos(4x + n[tex]\pi[/tex]/2)
The Attempt at a Solution
I understand implicit differentiation in basic problems but I get stump with the n exponent in the differentiation symbol; am I suppose to treat it as a 2nd, 3rd, 4th ... etc derivative?
If that's so, how should I prove that the left equation equals the right one.
So far I got to: 4(cos3x - sin3x)