How do you find the exact value of the six trigonometric functions of the angle whose terminal side passes through (0.5,4.5)?

1 Answer
Feb 27, 2018

As below.

Explanation:

x=0.5,y=4.5

r=x2+y2=(12)2+(92)2=824=412

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sinα=yr=92412=982

cosα=xr=12412=(182)

tanα=yx=9212=9

cscα=1sinα=829

secα=1cosα=82

cotα=(19)