જો $\tan \theta = \frac{5}{12}$ હોય,તો $\cos \theta = \ldots$

  • A
    $\frac{5}{13}$
  • B
    $\frac{5}{6}$
  • C
    $\frac{12}{13}$
  • D
    $\frac{12}{5}$

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Similar Questions

$(1-\cos \theta)(1+\cos \theta) = \dots$

જો $\sin ^{2}(3 x+30^{\circ})+\cos ^{2}(2 x+45^{\circ})=1$ હોય,તો $x = \dots$ ($^{\circ}$ માં)

$\sin^{2} 60^{\circ} - \tan 45^{\circ} + \cos^{2} 30^{\circ} - \cot 90^{\circ} = \ldots$

જો $\sec 4A = \operatorname{cosec}(A - 20^\circ)$ હોય,જ્યાં $4A$ એ લઘુકોણનું માપ છે,તો $A$ ની કિંમત $\ldots \ldots \ldots \ldots$ છે. ($^\circ$ માં)

જો $a \sin \theta = 3$ અને $a \cos \theta = 4$ હોય,તો $a = \dots$ (જ્યાં $a > 0$).

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