Given: x+y-z=xyz Find the value of $\displaystyle \frac{2x}{1-x^2}+\frac{2y}{1-y^2}+\frac{\sqrt z}{1-y^2}$ 2x/(1-x^2)+2y(1-y^2)+(z)^1/2 /(1-y^2) Please show all the steps involved.
Last edited by CaptainBlack; Aug 30th 2009 at 02:39 PM.
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Originally Posted by matsci0000 Given: $\displaystyle x+y-z=xyz$ Find the value of $\displaystyle \frac{2x}{1-x^2}+\frac{2y}{1-y^2}+\frac{\sqrt{z}}{1-y^2}$ latex fix ...
Let x=tan A y=tan B z=tan C Before I proceed , can anyone tell whether the following equality is true or not? tan A+ tan B -tan C= tan A tan B tan C
wrong forum -.- post your question in the algebra forum..
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