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2 years ago

Suppose cos(O) = 12/13, Quadrant I. Find sin(O). A:13/12 B:5/13 C:13/5 D:5/12

Mathematics

1 answer:

noname [10]2 years ago

7 0

Answer:

B: 5/13

Step-by-step explanation:

pythagoras theorem: a^2 + b^2 (sides) = c^2 (hypotenuse)

a^2 + 12^2 = 13^2

a^2 + 144 = 169

a^2 = 25

a = 5

sin = opp/hyp

sin 5/13

Hope this helps

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