Can someone solve this problem ? I'm stuck ... $\displaystyle tan^{2}36\times tan^{2}72=5$
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$\displaystyle tan^{2}36\times tan^{2}72=5 $ ok cannot factor since it is x not +
Last edited by bigwave; Dec 14th 2009 at 11:23 AM. Reason: corrected formula
I dont think you can do that... how about : $\displaystyle \left ( tan36\times tan72 \right )^{2}$ $\displaystyle \left ( \frac{sin36\times sin72}{cos36\times cos72} \right )^{2}$ what about now ?
I'm sorry for double posting but i can't return your PM. Isn't it the same as : $\displaystyle \left ( xy \right )^{2}=x^{2}y^{2}$
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