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prakhar raj ratna Grade: 12
        

the equation   cosß  =  t + a⁄t , t € R ( t ≠ 0) has a real solution of ß.Then the boundary satisfied by   a   is

7 years ago

Answers : (1)

Askiitian.Expert Rajat
24 Points
										

H i Prakhar,


 


|t + a⁄t| < 1


implies


t2+ a - t < 0 if t>0


and


t2+ a - t > 0 if t<0


 


Now use inequalities and the graph of y = x2+ a - x


to find out the range of values of a


 


Regards


Rajat



7 years ago
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