$\cos 35^{\circ} = \ldots \ldots \ldots$

  • A
    $\cos 55^{\circ}$
  • B
    $\sin 55^{\circ}$
  • C
    $\sec 35^{\circ}$
  • D
    $\operatorname{cosec} 35^{\circ}$

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Difficult
View Solution

यदि $\sin ^{2}(3 x+30^{\circ})+\cos ^{2}(2 x+45^{\circ})=1$ है,तो $x = \dots$ ($^{\circ}$ में)

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