Two mark exercise problems V — task. Mathematics State Board, Class 9.

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1. Find the value of

$\frac{\cot θ}{\tan (90 ° - θ)} + \frac{\cos (90 ° - θ) \tan θ \sec (90 ° - θ)}{\sin (90 ° - θ) \cot (90 ° - θ) cosec (90 ° - θ)}$ .

Answer:

$\frac{\cot θ}{\tan (90 ° - θ)} + \frac{\cos (90 ° - θ) \tan θ \sec (90 ° - θ)}{\sin (90 ° - θ) \cot (90 ° - θ) cosec (90 ° - θ)}$

$=$

2. Find the value of

$sin \ 49^{\circ}$ using trigonometric table.

Answer:

$sin \ 49^{\circ} =$

3. Find the value of

$cos \ 74^{\circ}39'$ using trigonometric table.

Answer:

$cos \ 74^{\circ}39' =$

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15. Two mark exercise problems V