kekelola kekelola

02-08-2018
Mathematics

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An acute angle θ is in a right triangle with cos θ = 9/10 . What is the value of sec θ?

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sqdancefan sqdancefan

02-08-2018

By definition

... sec(θ) = 1/cos(θ) . . . . trig identity

... sec(θ) = 1/(9/10) . . . . substitute the given value, then simplify to ...

... sec(θ) = 10/9

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antoninonguyen antoninonguyen

02-08-2018

10/9 because sec x=1/cos x

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