જો $A + B + C = \pi$ $(A, B, C > 0)$ અને ખૂણો $C$ ગુરુકોણ હોય,તો:

  • A
    $\tan A \tan B > 1$
  • B
    $\tan A \tan B < 1$
  • C
    $\tan A \tan B = 1$
  • D
    આમાંથી કોઈ નહીં

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જો $\sec \alpha + \tan \alpha = 2$ હોય,તો $\sin \alpha$ ની કિંમત શોધો (ધારો કે $0 < \alpha < 90^{\circ}$).

$\cos \frac{\pi}{2^2} \cdot \cos \frac{\pi}{2^3} \cdot \dots \cdot \cos \frac{\pi}{2^{10}} \cdot \sin \frac{\pi}{2^{10}}$ ની કિંમત શોધો.

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$\tan 7 \frac{1}{2}^{\circ}$ ની કિંમત કેટલી થાય?

$\frac{\sec 8A - 1}{\sec 4A - 1} = $

$(8 \sec^2 \theta + 2 \cos^2 \theta)$ નું ન્યૂનતમ મૂલ્ય કેટલું થાય?

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