Question

Thanks for helping!

If I have the coordinates (0,7) and I need to use the formula tan theta=y/x, (x cannot equal 0), how do I find the angle? Isn't it undefined? Thank You!

Answer 1

there is only one angle ... well two ... that have an undefined tangent, but then again their cotangent IS defined. what are they?

Answer 2

I'm not sure :(

Answer 3

think of it this way:

tan = sin/cos

for what angle is cos(t) = 0?

Answer 4

For sin(t)=0?

Answer 5

no, its the bottom that is zero ... so cos(t) = 0

Answer 6

y/x = sin(a)/cos(a)

y cos(a) = x sin(a)

since x=0 and y=7

7 cos(a) = 0

cos(a) = 0

Answer 7

ah, so it is pi/2?

Answer 8

yes :)

Answer 9

awesome, that was really helpful!

Answer 10

Thank You!

Answer 11

good luck :)

Answer 12

:D