Find the remaining trigonometric ratios of θ if :

Question

cos θ =− 1/ 3 𝑎𝑛𝑑 𝜃 𝑡𝑒𝑟𝑚𝑖𝑛𝑎𝑡𝑒𝑠 𝑖𝑛 𝑄𝐼𝐼𝐼

Answer 1

-1 is x value, 3 is hypotenuse (hypotenuse must be positive)

y=+/-√(3²-(-1)²)=+/-2√2

since point determining angle is QIII, y=+2√2

sinθ=y/r,,,r is hypotenuse

tanθ=y/x

secθ=r/x

cscθ=r/y

cotθ=x/y

remember x=-1