3 years ago

180° < x < 270°, what is the value of tan-1(0.577)?

1 answer:

7 0

Think: "Find tan-1(0.577)" means "Find the ANGLE in Quadrant III whose tangent is 0.577. Because the angle is in QIII, both the opp side and the adj side are negative. Here you have four answer choices. The correct answer MUST be within the interval 180 and 270 degrees. Only one of the given answer choices satisfies that criterion. Which one is it?

tan-1(0.577) = ?

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