[ A ] Only one value of x 

[ B ] Two values of x  
[ C ] Infinite values of x  
[ D ] No value of x 
[ A ] Only one value of x 

[ B ] Two values of x  
[ C ] Infinite values of x  
[ D ] No value of x 
Answer : Option C 
Explanation : 
Given that, $sin^2$ x + $cos^2$ x1=0 ==> $sin^2$ x + $cos^2$x=1 which is an identity of trigonometric ratio and always true for every real value of x. Therefore, the equation has an infinite solution. 
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