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AmTran_BusBest ResponseYou've already chosen the best response.0
dw:1351550575736:dw
 one year ago

AmTran_BusBest ResponseYou've already chosen the best response.0
If theta equals tan theta and that equals 3, find F(theta+pi)
 one year ago

AmTran_BusBest ResponseYou've already chosen the best response.0
@freewilly922 @swissgirl
 one year ago

AmTran_BusBest ResponseYou've already chosen the best response.0
dw:1351550836023:dw
 one year ago

swissgirlBest ResponseYou've already chosen the best response.0
not sure hoe theta can equal tan theta
 one year ago

swissgirlBest ResponseYou've already chosen the best response.0
unless theta equals 0
 one year ago

swissgirlBest ResponseYou've already chosen the best response.0
But cant see it when theta equals 3
 one year ago

AmTran_BusBest ResponseYou've already chosen the best response.0
Well, I think you can also read it as tan theta=3, and it wants you to find the exact value using the coord plane.
 one year ago

AmTran_BusBest ResponseYou've already chosen the best response.0
And something about when you add pi you go 180 degrees around the unit circle...
 one year ago

freewilly922Best ResponseYou've already chosen the best response.1
1) you know that the tangent is positive so if you start in quadrant 1 you know that the triangle that you draw the opposite side to the angle has to be 3 times that of the adjacent side. dw:1351551020275:dw adding pi or 180 degrees puts you in the 3rd quadrant where both sin and cos are both negative, so the negatives signs will cancel out. Therefore, tan(theta) = tan(theta+180) = 3
 one year ago

freewilly922Best ResponseYou've already chosen the best response.1
Oh and pi(radians) = 180 degrees and yes I know it should be a 3 in the drawing
 one year ago

AmTran_BusBest ResponseYou've already chosen the best response.0
Tan= y/x ...do you use the value of x or y in this example?
 one year ago

freewilly922Best ResponseYou've already chosen the best response.1
dw:1351551191480:dw \[\tan{(\theta)} = \frac{\sin{(\theta})}{\cos{(\theta)}} \] when you go to the 3rd quadrant you go from a y/x to a (y)/(x) so you stay with y/x
 one year ago

freewilly922Best ResponseYou've already chosen the best response.1
\[\frac{\sin{(\theta)}}{\cos{(\theta)}}=\frac{y}{r}\frac{r}{x}\]
 one year ago
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