How to find the value of this without using a calculator ?
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Using the formulae in sections 16 and 17 of this page PlanetMath you can simplify to arrive at a value of 1/16. Similarly you can get . You also need to remember that .
Can you show me how did you apply these formulas to get these results ?
I'll get you started. I'll put in extra steps to try to be clear. I'll leave the denominator to you. The LaTeX is harder than the maths.
Last edited by a tutor; Apr 19th 2012 at 01:38 PM.
Thank you a tutor !,now i understand how to find it ,but which formula do i have to use for tan ?
So the answer is 1/3 i think ,thank you for your time .
Last edited by Mhmh96; Apr 19th 2012 at 03:09 PM.
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