Trigonometry (1 Viewer)

[nsbrando]

having trouble finding exact values for these following questions

1. 1-cos45 over 1+cos45
2. 5cosec^2 60
3. 2-tan60 over sec^2 45

^2 -means squared

 

[Timske]

<a href="http://www.codecogs.com/eqnedit.php?latex=cos^2(45) = \left (\frac{1}{\sqrt{2}} \right )^{2} = \frac{1}{2}" target="_blank"><img src="http://latex.codecogs.com/gif.latex?cos^2(45) = \left (\frac{1}{\sqrt{2}} \right )^{2} = \frac{1}{2}" title="cos^2(45) = \left (\frac{1}{\sqrt{2}} \right )^{2} = \frac{1}{2}" /></a>

 

[Fus Ro Dah]

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