Question

If a triangle lies in the interval -1 11 years ago

Answer 1

SO i feel like there is information missing here

Answer 2

does it state that all of the coordinates fall within this restricted bound

Answer 3

all of the x coordinates**

Answer 4

I'm trying to find the value of cos(arcsin (x/5) , but I'm not sure where to draw the triangle. no coordinates specified

Answer 5

ahh, ok, now I understand. So the real question here is when will the sine of a number be negative?

Answer 6

which quadrant

Answer 7

If you do not understnad how I made it to that point let me know

Answer 8

yea, which quadrant

Answer 9

that's where I'm stuck

Answer 10

ok so first, do you understand why I am asking you when is sine negative?

Answer 11

sine is negative in the 3rd and 4 quadrants

Answer 12

but it has to fall in the interval -1<x<0

Answer 13

Sine is negative in the third quadrant and fourth That is correct

Answer 14

so if you have the fraction \(\frac{x}{5}\) And you are bounded with the bounds on x you say, is that fraction positive or negative?

Answer 15

once you figure that out, you then can use the structure of the coordinate plane to decide whether your triangle is in quad III or IV