# How do you find cos theta?

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tan #theta# = #4sqrt(3)# and 0< #theta# < #pi/2#

tan

##### 2 Answers

Jan 22, 2018

#### Explanation:

Feb 1, 2018

cos t = 1/7

#### Explanation:

Use trig identity:

In this case:

Because t is in Quadrant 1, therefor, cos t is positive.