જો $\cos 9 \alpha = \sin \alpha$ અને $9 \alpha < 90^{\circ}$ હોય,તો $\tan 5 \alpha$ ની કિંમત શોધો.

  • A
    $\frac{1}{\sqrt{3}}$
  • B
    $\sqrt{3}$
  • C
    $1$
  • D
    $0$

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જો $\cos \theta = \frac{15}{17}$ હોય,તો $\operatorname{cosec} \theta + \cot \theta$ ની કિંમત ......... છે.

$\Delta ABC$ માં,$m \angle C = 90^{\circ}$ અને $\tan A = \frac{1}{\sqrt{3}}$ હોય,તો $\sin A = \ldots$

જો $\sec \theta = \frac{13}{5}$ હોય,તો $\cos \theta = \ldots \ldots \ldots \ldots$

જો $\cot \theta = \frac{7}{8}$ હોય,તો નીચેનાની કિંમત શોધો:
$(i) \frac{(1+\sin \theta)(1-\sin \theta)}{(1+\cos \theta)(1-\cos \theta)}$
$(ii) \cot^2 \theta$

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$\triangle OPQ$ માં,$P$ આગળ કાટખૂણો છે,$OP = 7\, cm$ અને $OQ - PQ = 1\, cm$ છે. $\sin Q$ અને $\cos Q$ ના મૂલ્યો શોધો.

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