Question

Find the point on the terminal side of θ = pi/4 that has an x coordinate of 2.

Answer 1

-y = xtan(π/4) = 2(1) = 2

(x,y) = (2,2)
--x = (r)cos(θ)
2 = (r)cos(π/4)
r = 2√2
y = (2√2)cos(π/4) = 2
The point is (2,2)
(r,θ) = (2√2,π/4)

Answer 2

Or more simply


\(y = \large\frac{2}{tan{45^{\circ}}}\)

Answer 3

Since you already know the x coordinate, you have (2,y)

Answer 4

so it's 1.23?

Answer 5

@yahoo! already posted what the point is clear as day.

Answer 6

OH THANKS VERY MUCH GUYS! i appreciate it! :)