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Grade: 12th pass 
        For what real values of x and y is the equation possible?
3 years ago

Answers : (1)

Nicho priyatham
625 Points 
							
ONLY WHEN (X,Y)=(1,1)
applying AM>(or equal)GM we get
4xy/(x+y)2belongs to (0,1]
where as secx belongs to R-[-1,1]
so both LHS nRHS can be equal only wn LHS=RHS=1 so x=y=1
PLZ APPROVE IF USEFUL
3 years ago
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