Problem

Find the exact value of each of the six trigonometric functions of θ, if (4,1) is a point on the terminal side of angle θ.
sinθ=
(Simplify your antwer, including any radicals. Use integers or fractions for any numbers in the expression. Rationalize all denominators.)

Answer

Expert–verified
Hide Steps
Answer

sinθ=1717,cosθ=41717,tanθ=14,cscθ=17,secθ=174,cotθ=4

Steps

Step 1 :r=(x2)+(y2)=(42)+(12)=16+1=17

Step 2 :sinθ=yr=117=1717

Step 3 :cosθ=xr=417=41717

Step 4 :tanθ=yx=14

Step 5 :cscθ=ry=171=17

Step 6 :secθ=rx=174

Step 7 :cotθ=xy=41=4

Step 8 :sinθ=1717,cosθ=41717,tanθ=14,cscθ=17,secθ=174,cotθ=4

link_gpt