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I am Lyosha [343]
3 years ago
10

I need help solving this problem

Mathematics
2 answers:
guapka [62]3 years ago
8 0

Answer:

- 5/13

Step-by-step explanation:

tans = 5/12 = height/base

Using Pythagoras, hypotenuse = √12² + 5² = 13

Therefore coss had to be 12/13

But since cos s < 0, cos s = - 12/13

Thus,

tanA = sinA/cosA

tanA cosA = sinA

(5/12)(- 12/13) = sinA

- 5/13 = sinA

svet-max [94.6K]3 years ago
6 0

Answer:

sin s = - \frac{5}{13}

Step-by-step explanation:

Given

tan s = \frac{5}{12} = \frac{opposite}{adjacent}

Then this is a 5- 12- 13 right triangle with hypotenuse = 13

Since tan s > 0 and cos s < 0

Then s is in the third quadrant where sin s < 0

sin s = \frac{opposite}{hypotenuse} = - \frac{5}{13}

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