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Hey guys, can you help me with this question? Thanks. 1. $Simplify the following$:\frac{3tan(A/3)-tan^{3}(A/3))}{1-3tan^{2}(A/3)}.

How do you do this question? I dont even know where to start apart from factorising. $Show that$\sqrt{8-4\sqrt{3}}=\sqrt{6}-\sqrt{2}

This is from Fitzpatrick 3U page 60. Find the values of x for which the following inequations are simultaneously satisfied: x+\frac{1}{|x|}>0 \;$and$\;x^{2}-x-2<0 Full worked solution will be great because this one is a tough one. Thanks

Hey BOS, I need help with a math question. The question was to solve: 1+x^(-1/2)=0 I did all the working out and got to the step where: sqrt(x)=-1 And I know that there is no real solutions. But then I went and did this, x=(-1)^2 = 1 I know x = 1 is wrong because if...