$\cos (270^\circ + \theta )\cos (90^\circ - \theta ) - \sin (270^\circ - \theta )\cos \theta $ નું મૂલ્ય શોધો.

  • A
    $0$
  • B
    $-1$
  • C
    $0.5$
  • D
    $1$

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Similar Questions

નીચેનામાંથી કોનું મૂલ્ય સમાન છે?
$(a)$ $\sin 120^{\circ}$
$(b)$ $\cos 930^{\circ}$
$(c)$ $\tan 840^{\circ}$
$(d)$ $\cot (-1110^{\circ})$

જો $x = \tan 15^{\circ}$,$y = \operatorname{cosec} 75^{\circ}$ અને $z = 4 \sin 18^{\circ}$ હોય,તો :

$\frac{\sin 81^o + \cos 81^o}{\sin 81^o - \cos 81^o}$ ની કિંમત શોધો.

$\frac{1}{\cos 290^{\circ}}+\frac{1}{\sqrt{3} \sin 250^{\circ}} = $

જો $5 \tan \theta = 4$ હોય,તો $\frac{5 \sin \theta - 3 \cos \theta}{5 \sin \theta + 2 \cos \theta} = $

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