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If point P is located on the unit circle...

If point P is located on the unit circle, then `x+y=`

A

`0.37`

B

`0.50`

C

`0.78`

D

`1.37`

Text Solution

Verified by Experts

The correct Answer is:
D
Draw in a right triangle :

That's a 30-60-90 triangle. The hypotenuse is the radius, so it's 1. That means that the short leg is `(1)/(2)` and the long leg is `(sqrt(3))/(2)` :

so, `x+y=(1)/(2)+(sqrt(3))/(2)~~1.37`.
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