$\tan 1^{\circ} \tan 2^{\circ} \tan 3^{\circ} \ldots \tan 89^{\circ}$ નું મૂલ્ય શું છે?

  • A
    $1$
  • B
    $0$
  • C
    $-1$
  • D
    કોઈ નહીં

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જો $x = \sec \theta + \tan \theta$ હોય,તો $x + \frac{1}{x} = $

જો $\sin \theta + \csc \theta = 2$ હોય,તો $\sin^2 \theta + \csc^2 \theta = $

$\sin^6 \theta + \cos^6 \theta + 3 \sin^2 \theta \cos^2 \theta = $

$\frac{{\tan A + \sec A - 1}}{{\tan A - \sec A + 1}} = $

એક ટાવરની ટોચનો ઉત્સેધકોણ $30^{\circ}$ છે. ટાવર તરફ $100 \ m$ ચાલ્યા પછી,ટાવરની ટોચનો ઉત્સેધકોણ $60^{\circ}$ થાય છે. ટાવરની ઊંચાઈ શોધો ( $m$ માં).

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