Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
Difficultજો $x \cos \theta = y \cos \left( \theta + \frac{2\pi}{3} \right) = z \cos \left( \theta + \frac{4\pi}{3} \right)$ હોય,તો $\frac{1}{x} + \frac{1}{y} + \frac{1}{z}$ ની કિંમત કેટલી થાય?
- A$1$
- B$2$
- C$0$
- D$3 \cos \theta$
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જો $\sinh u = \tan \theta$ હોય,તો $\cosh u$ ની કિંમત શું થાય?
સમીકરણ $\frac{3 \cos 2x + \cos^3 2x}{\cos^6 x - \sin^6 x} = x^3 - x^2 + 6$ ના ઉકેલો $x \in R$ નો સરવાળો કેટલો થાય?
DifficultJEE MAIN 2024
View Solutionજો $e^{\sin x}-e^{-\sin x}-4=0$ હોય, તો $x$ ની વાસ્તવિક કિંમતોની સંખ્યા કેટલી છે?
MediumWBJEE 2019
View Solution$\sin 5^{\circ} + \sin 10^{\circ} + \sin 15^{\circ} + \dots + \sin 350^{\circ} + \sin 355^{\circ}$ ની કિંમત શોધો.
Difficult
View Solutionજો $\sin x + \sin y = \frac{\sqrt{3}+1}{2}$ અને $\cos x + \cos y = \frac{\sqrt{3}-1}{2}$ હોય,તો $\tan^2 \left(\frac{x-y}{2}\right) + \tan^2 \left(\frac{x+y}{2}\right) = $
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