Introduction to Trigonometry

Bihar Board Class 10 · Mathematics · 116 past questions

10 of 116 · show all

1. Q95 2019

   If A, B, C are angles of a triangle, then $\sin\left(\frac{B+C}{2}\right)$ is equal to -

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2. Q96 2019

   If $\tan\theta = \frac{3}{4}$, then the value of $\sin\theta$ is -

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3. Q97 2019

   $\frac{\sin 18^\circ}{\cos 72^\circ} =$

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4. Q98 2019

   If 5cosθ=3, then the value of 3tanθ will be -

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5. Q99 2019

   $\cos(90^\circ - A) =$

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6. Q100 2019

   $\cos 1^\circ \cos 2^\circ \cos 3^\circ \ldots\ldots\ldots \cos 90^\circ =$

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7. Q101 2019

   If $\sin\theta = \cos\theta$, then $\theta$ is equal to-

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8. Q102 2019

   $\sin^2\theta + \cos^2\theta =$

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9. Q103 2019

   Which of the following is equal to $\cot\theta$?

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10. Q104 2019

    Value of $\tan^2 60^\circ$ is-

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