1.

If x4+3cos(ax2+bx+c)=2(x2−2) has two solutions with a,b,c∈(2,5), then which of the following can be TRUE ?

Answer»

If x4+3cos(ax2+bx+c)=2(x22) has two solutions with a,b,c(2,5), then which of the following can be TRUE ?



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