WAEC - Further Mathematics (2017 - No. 13)

Express cos150° in surd form.

\(-\sqrt{3}\)

\(-\frac{\sqrt{3}}{2}\)

\(-\frac{1}{2}\)

\(\frac{\sqrt{2}}{2}\)

Uitleg

cos150° = -cos30°

= \(-\frac{\sqrt{3}}{2}\)

Opmerkingen (0)

Advertentie