Question

1. [3 marks] Determine each trig ratio rounded to four decimal places. a) sin110° b) cos 130° c) tan160°

Answer 1

Given:

Angles of trigonometry Sin 110, Cos 130 and tan 160.

Required:

Find values rounded to four decimal places.

Explanation:

$\begin{gathered} 1).\text{ }Sin\text{ }110^{\circ}=0.9397 \\ 2).\text{ }Cos\text{ }130^{\circ}=-0.6428 \\ 3).\text{ }tan\text{ }160^{\circ}=-0.3640 \end{gathered}$

Answer:

These are the answers.