Question

What is the y-value for f(x) = tan(90°)?

Answer 1

if you analyze it using sine and cosine, sin(90) = 1 and cos(90) = 0 which is undefined.
However, some might say the answer is ∞joio

Answer 2

It might help if you thought of it as tan(x)=sin(x)/cos(x)

Answer 3

Well, if you analyze it using sine and cosine, sin(90) = 1 and cos(90) = 0 which is undefined.
However, some might say the answer is ∞

Answer 4

(Answers are from @abb0t results)* I hope it help! :)

Answer 5

If you are still stuck on anything let me know I will walk you through it friend :)

Answer 6

i am, i have really no idea how to do this stuff and my teachers arent being any help to me and im in a exam trying to put this stuff together so can you please walk me through this :c

Answer 7

Aww :( Its ok im here

Answer 8

Ok let me help you out more i will brb

Answer 9

should i close this question and open another?

Answer 10

This is the website im on http://www.themathpage.com/aTrig/unit-circle.htm

Answer 11

ANALYTIC TRIGONOMETRY is an extension of right triangle trigonometry. It takes place on the x-y plane.

Answer 12

Let a radius of length r sweep out an angle θ in standard position, and let its endpoint have coördinates (x, y).

Answer 13

According to the Pythagorean theorem,

Answer 14

this is kind of helping;o

Answer 15

r = square root x^2 + y^2

Answer 16

i don't see the question on the document

Answer 17

It is in terms of the coördinates (x, y) of the endpoint of a distance r from the origin.

Answer 18

im still having trouble trying to figure out my next question :/

Answer 19

ok well try this out.. The sine, cosine and tangent of an angle are all defined in terms of trigonometry, but they can
also be expressed as functions.

Answer 20

In this unit we examine these functions and their graphs. We
also see how to restrict the domain of each function in order to define an inverse function.

Answer 21

In order to master the techniques explained here it is vital that you undertake plenty of practice
exercises so that they become second nature. ok?

Answer 22

1. In this unit we shall use information about the trigonometric ratios sine, cosine and tangent to
define functions f(x) = sin x, f(x) = cos x and f(x) = tan x.

Answer 23

2. The sine function f(x) = sin x
We shall start with the sine function, f(x) = sin x. This function can be defined for any number
x using a diagram like this.

Answer 24

okay, im gonna close this question and ask another and try to understand how they got the answer the best i can. thank you for helping me.