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bfinn4
 2 years ago
could anyone help me with the half angle formulas for tan.
i have tan(5pi)/4
i can get everything plugged into the formula but i am having trouble simplify
@precal
bfinn4
 2 years ago
could anyone help me with the half angle formulas for tan. i have tan(5pi)/4 i can get everything plugged into the formula but i am having trouble simplify @precal

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ajprincess
 2 years ago
Best ResponseYou've already chosen the best response.1Do u want to find the value of tan(5pi)/4?

bfinn4
 2 years ago
Best ResponseYou've already chosen the best response.0i am having trouble simplify all the radical stuff..and i dont have a way to type a radical into this web site so i dont know how to show you my work?

bfinn4
 2 years ago
Best ResponseYou've already chosen the best response.0oops i typed that woring i want the value of tan(5pi)/8

ajprincess
 2 years ago
Best ResponseYou've already chosen the best response.1`\(sqrt{}\)` u can use this to type radicals.

ajprincess
 2 years ago
Best ResponseYou've already chosen the best response.1\[\tan\theta=\frac{2tan(\frac{\theta}{2})}{1tan^2(\frac{\theta}{2})}\]

ajprincess
 2 years ago
Best ResponseYou've already chosen the best response.1\[\frac{\theta}{2}=\frac{5\pi}{8}\] \[\theta=\frac{5\pi}{4}\] plugging this in the formula gives u \[\tan\frac{5\pi}{4}=\frac{2tan\frac{5\pi}{8}}{1tan^2\frac{5\pi}{8}}\] \[\pi=180\] so \[\frac{5\pi}{4}=225\] do u knw the value of tan225?

ajprincess
 2 years ago
Best ResponseYou've already chosen the best response.1so \[\tan\frac{5\pi}{4}=1\]. \[1=\frac{2tan\frac{5\pi}{8}}{1tan^2\frac{5\pi}{8}}\] Let us assume \[x=\tan\frac{5\pi}{8}\] \[1=\frac{2x}{1x^2}\] \[1x^2=2x\] \[x^2+2x1=0\] Can u find x?

bfinn4
 2 years ago
Best ResponseYou've already chosen the best response.0i have to go to class but yes i can find x ...i will do it right after geology.

precal
 2 years ago
Best ResponseYou've already chosen the best response.0@ajprincess she did a great job helping you
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