# Fill in the blank. Let θ be an angle in standard position, with (x, y) a point on the terminal side of θ and r = #sqrt(x^2 + y^2)≠ 0#?

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sec #theta#

sec

##### 1 Answer

Apr 6, 2017

#### Explanation:

The secant of an angle is the inverse of the cosine of the angle -- that is,

The cosine of an angle with your conditions is