4 years ago

Sin(7pi/6) help plz

Mathematics

1 answer:

NeTakaya4 years ago

8 0

Answer:

Step-by-step explanation:

Note that 7pi/6 is equivalent to 6pi/6 + 1pi/6, which is equivalent to pi plus pi/6, or 180 degrees plus 30 degrees. 7pi/6 is in Quadrant III; its "opposite side" is -1 and its "hypotenuse is 2." Thus, the sine of (7pi/6) is the ratio

opp side -1

------------------- = ------------ This matches Answer B.

hypotenuse 2

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