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What is cos theta, if sec theta = 2?

User Raju Rudru
by
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1 Answer

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Answer:


(1)/(2)

Explanation:

First, we need to notice the relationship between cos and sec.


sec(x)=(1)/(cos(x))

Knowing the value of sec, we can then substitute that in and solve for cos


sec(x)=(1)/(cos(x))\\\\2=(1)/(cos(x)) \\\\2cos(x)=1\\\\cos(x)=(1)/(2)

User Bin Chen
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6.4k points