Trigonometric fx

When an acute angle φ is in the standard position, its terminal side passes through point P (1,3). Find trigonometric functions of
angle θ : sin φ, cos φ, tan φ, cotan φ.

Correct answer:

s =  0.9487
c =  0.3162
t =  3

Step-by-step explanation:

P=(1,3) m=Px2+Py2=12+32=103.1623  sin φ = my s=mPy=3.16233=0.9487
cos φ = mx c=mPx=3.16231=0.3162
t =  cos φsin φ = PxPy t=PxPy=13=3

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