Trigonometrical Equations
normal

સમીકરણ $\sum\limits_{r = 1}^5 {\cos (r\,x)} $ $= 0$ ના $(0, \pi)$ માં ઉકેલોની સંખ્યા મેળવો. 

A

$2$

B

$3$

C

$5$

D

 $5$ કરતાં વધારે 

Solution

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Standard 11
Mathematics

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