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Mathematics 7 Online
OpenStudy (anonymous):

Trigonometry Algebra 2 HELP !

OpenStudy (anonymous):

The point (−3, 1) is on the terminal side of angle θ, in standard position. What are the values of sine, cosine, and tangent of θ?

OpenStudy (freckles):

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OpenStudy (freckles):

well you have the opp side given and the adjacent side you just need to find the hyp

OpenStudy (anonymous):

can you check my work if it's right? @freckles

OpenStudy (anonymous):

sin(θ) = opposite/hypotenuse = 1/sqrt(10) cos(θ) = adjacent/hypotenuse = 3/sqrt(10) tan(θ) = opposite/adjacent = 1/3

OpenStudy (freckles):

here

OpenStudy (freckles):

two corrections...

OpenStudy (freckles):

the adjacent side is negative

OpenStudy (freckles):

opp side is positive

OpenStudy (freckles):

so cos is neg and tan is also neg

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