Do I Need A Trigonometric Table?

Geometry Level 1

\[ \large \cos \dfrac\pi2, \quad \cos \dfrac{2\pi}3, \quad \cos\dfrac{3\pi}4, \quad \cos\dfrac{4\pi}5 \]

All of the above 4 numbers are negative except \(\text{__________} \).

×

Problem Loading...

Note Loading...

Set Loading...