Question

Using the scientific calculator or graphing calculator find the inverse tangent of the ratio. Round to the nearest degree. 3/1

Answer 1

Given:

The ratio is $\dfrac{3}{1}$.

To find:

Inverse tangent of the given ratio.

Solution:

We know that,

Inverse tangent of the ratio $\dfrac{3}{1}$ = $\tan^{-1}\dfrac{3}{1}$

                                                 = $\tan^{-1}3$

Using scientific or graphing calculator, we get

Inverse tangent of the ratio $\dfrac{3}{1}$ = $71.565^\circ$

Round to the nearest degree

Inverse tangent of the ratio $\dfrac{3}{1}\approx 72^\circ$

Therefore, the correct option is C.