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