NiNA267872 NiNA267872

10-03-2021
Mathematics

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

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Аноним Аноним

10-03-2021

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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