Question

find the exact value of sinθ and cosθ if the point (-4,-5) is on the terminal side of θ

Answer 1

bad girl

Answer 2

sin(theta) = opposite side / hypotenuse

cos(theta) = adjacent side / hypotenuse

Answer 3

but di i divide than?

Answer 4

The hypotenuse is found by pythagorean theorem a^2 + b^2 = c^2

hypotenuse = square root(4^2 + 5^2) = square root 41

Answer 5

opposite side = 5
adjacent side = 4
hypotenuse = root(41)

Answer 6

thanks