Two mark example problems I — task. Mathematics State Board, Class 9.

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1. For the measures in the figure, compute sine, cosine and tangent ratios of the angle

$\theta$ .

Answer:

$sin \ \theta =$

$\frac{i}{i}$

$cos \ \theta =$

$\frac{i}{i}$

$tan \ \theta =$

$\frac{i}{i}$

2. Evaluate

$sin \ 30^{\circ} + cos \ 30^{\circ} =$

$\frac{i + \sqrt{i}}{i}$

3. Evaluate

$tan \ 60^{\circ} \ cot 60^{\circ} =$

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