valrose8 valrose8

04-03-2021
Mathematics

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Trig function - find the exact value

Trig function find the exact value class=

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goddessboi goddessboi

04-03-2021

Answer:

3/5

Step-by-step explanation:

We can find ∅ by using the tangent function since we have the opposite and adjacent sides of ∅.

tan(∅)=1/2

tan^-1(tan(∅))=tan^-1(1/2)

∅=26.57

Since we are looking for cos(2∅), then we have cos(2(26.57))=cos(53.14)≈0.6

So the exact value is 3/5

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