Hi

A few question i am stuck on and need help:

1)

this is what i have done but it is incorrect.

2)

3)

P.S

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- Jan 12th 2010, 02:44 AMPaymemoneySimplifying trig expression
Hi

A few question i am stuck on and need help:

1)

this is what i have done but it is incorrect.

2)

3)

P.S - Jan 12th 2010, 03:04 AMdifferentiate
not sure what you want to simplify the expression to. im just guessing,

1) following on,

sin2a

2) (1/2)sinxcosx = 1/4(2sinxcosx) = (1/4)sin2a

3) tanx/(1-tan^2x) = 1/2[(2tanx)/(1-tan^2x)] = 1/2tan2x - Jan 12th 2010, 03:12 AMPaymemoney