Introduction to Trigonometry

Bihar Board Class 10 · Mathematics · 116 past questions

17 of 116 · show all

1. Q45 2023

   $\dfrac{\cos 60^\circ + 1}{\cos 60^\circ - 1} =$

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2. Q46 2023

   If $A/5 = 12^\circ$, then the value of $3\,\mathrm{cosec}^2 A$ will be

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3. Q47 2023

   $\sin 54^\circ - \cos 36^\circ =$

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4. Q48 2023

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

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5. Q49 2023

   The value of $\frac{\cos 37^\circ}{\sin 53^\circ}+\frac{\cot 34^\circ}{\tan 56^\circ}$ is

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6. Q50 2023

   $2(\sin 45^\circ - \cos 45^\circ) =$

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7. Q51 2023

   The value of $7\operatorname{cosec}^2\theta - 7\cot^2\theta$ is

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8. Q52 2023

   If $\sin 48^\circ = p$, then the value of $\tan 48^\circ$ is

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9. Q53 2023

   If $\tan 27^\circ \tan 63^\circ = \sin A$, then the value of $A$ is

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10. Q54 2023

    $\frac{\sin^2(90^\circ-\theta)+\sin^2\theta}{\operatorname{cosec}^2(90^\circ-\theta)-\tan^2\theta} =$

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11. Q55 2023

    $(1-\sin^4\theta)$

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12. Q56 2023

    If $\tan\theta = \frac{15}{8}$, then the value of $\sin\theta$ will be

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13. Q57 2023

    If $(\tan\theta + \cot\theta) = 6$, then the value of $\tan^2\theta + \cot^2\theta$ is

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14. Q58 2023

    If $\sin\theta = \dfrac{\sqrt{3}}{2}$, then the value of $\operatorname{cosec}\theta + \cot\theta$ is

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15. Q59 2023

    If $\sin\theta = \cos\theta$, $0 \leq \theta \leq 90^\circ$, then value of $\theta$ is

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16. Q60 2023

    $\dfrac{\sin 30^\circ + \cos 45^\circ - \tan 60^\circ}{\cot 30^\circ - \sin 45^\circ - \cos 60^\circ} =$

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17. Q61 2023

    $\tan 30^\circ \sin 30^\circ \cot 60^\circ \operatorname{cosec} 30^\circ =$

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