CAn someone show me how to do this?
This is how you determine the quadrent: 1.Find the value of a number using its distance and direction from zero. ... 2.Find opposite numbers on the number line. ... 3.Locate a point on the coordinate plane. ... 4.Determine the quadrant of a point. ... 5.Predict the reflection of a point by changing values.
alright
Hey Howard :) Sine corresponds to your y-coordinate. If your sine > 0, that means it's positive. So which two quadrants do you have a positive y-coordinate?
one and two?
|dw:1431480812462:dw|yup sounds good!
tangent is like... slope. recall that tangent is sine over cosine. so you can think of it as y/x, slope of a line. tangent will be negative in these two quadrants,|dw:1431480884720:dw|see how the line slopes downward?
So you choose the quadrant that meets both of these requirements.
dude that would be two and four
its weird because you can only choice one of them and not two
@mathstudent55
@phi can you explain to me how it could only be one answer
its not going through one quad but two
are you asking about sin(t)>0 and tan(t)<0 ?
yes
I think of sin as the "y" value and the cos as the x value first draw circle, and show where the sin(t)>0 (meaning where y is > 0) |dw:1431524176716:dw|
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