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Let the angle theta be the angle that the vector A makes with the +x-axis, measured counterclockwise from that axis. Find the angle theta for a vector that has the following components:

A_x = -4.50m

A_y = -3.30m

Using the calculator, I got arctan(-3.30m/-4.50 m) = 36.25 degrees.

However, this answer is wrong. I know the angle is supposed to be counterclockwise from +x-axis, but I thought the signs canceled out. What is the correct way of determining the angle?

Thanks.

A_x = -4.50m

A_y = -3.30m

Using the calculator, I got arctan(-3.30m/-4.50 m) = 36.25 degrees.

However, this answer is wrong. I know the angle is supposed to be counterclockwise from +x-axis, but I thought the signs canceled out. What is the correct way of determining the angle?

Thanks.

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