Trigonometrical Equations
normal

જો $\sin \,\theta  + \sqrt 3 \cos \,\theta  = 6x - {x^2} - 11,x \in R$ , $0 \le \theta  \le 2\pi $ હોય તો સમીકરણોના ............. ઉકેલો મળે 

A

એક 

B

બે 

C

અનંત 

D

શૂન્ય 

Solution

$\sin \theta+\sqrt{3} \cos \theta=-2-(x-3)^{2}$

minimum vlaue of $\sin \theta+\sqrt{3} \cos \theta$ is $-2$

Hence solution of equation is possible only if $x=3$

Standard 11
Mathematics

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