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HSC 2012 Maths Marathon (archive) (1 Viewer)

zeebobDD

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Re: 2U Maths marathon

new q:
prove that d/ dx(Ln(x). sqrt(cosx)) = (1-sin^2(x)/ cosx^3/2 ) - [x Ln(x) tanx sqrt(cosx)] / 2
 

Sy123

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Re: 2U Maths marathon

For what given domain? This is 2U

Because by observation I can say x=0 is a solution.
 

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