જો $A+B=45^{\circ}$ અને $(\cot A-1)(\cot B-1)=4 K$ હોય,તો $K=$

  • A
    $\frac{1}{4}$
  • B
    $\frac{1}{8}$
  • C
    $\frac{1}{2}$
  • D
    આમાંથી કોઈ નહીં

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Similar Questions

કિંમત શોધો: $\tan A + \cot (180^\circ + A) + \cot (90^\circ + A) + \cot (360^\circ - A)$

$\frac{1}{4} \tan \frac{\pi}{8} + \frac{1}{8} \tan \frac{\pi}{16} + \frac{1}{16} \tan \frac{\pi}{32} + \dots \infty$ પદોનું મૂલ્ય કેટલું થાય?

જો $\sec \theta + \tan \theta = p$ હોય,તો $\tan \theta$ ની કિંમત કેટલી થાય?

$\tan 20^\circ + \tan 40^\circ + \sqrt{3} \tan 20^\circ \tan 40^\circ = $

$\sin ^{2} 22^{\circ}+\sin ^{2} 68^{\circ}+\cot ^{2} 30^{\circ}$ નું મૂલ્ય શોધો.

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