The set of all values of x satisfyi...
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The set of all values of x satisfying .ca - 1+4>0, is

JEE/Engineering Exams
Maths
Solution
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( x^{2}-x+4 geq 0 ) ( x^{2}-frac{x}{2} times 2+frac{1}{4}-frac{1}{4}+4 geq 0 ) ( left.x-frac{1}{2}right)^{2}+4-frac{1}{4} geq 0 ) ( x=1 / 2+frac{15}{4} geq 0 ) ( x in R )
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