The line with equation a + 2b = 0 coincides with the terminal side of an angle θ in standard position and cos θ<0 .

What is the value of sinθ ?



−1/2 <my answer

5√

5√/5

−25√/5

The line with equation x−y=0 coincides with the terminal side of an angle θ in standard position in Quadrant III .

What is the value of tanθ ?

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i have an answer but im still kinda confused with the question

1 answer

a, correct
b, slope is 1, or tan Theta=1
(tanTheta)=y/x