TS EAMCET · Maths · Quadratic Equation
The number of integral values of ' \(a\) ' for which the quadratic equation \(a x^2+a x+5=0\) cannot have real roots is
- A Infinite
- B \(20\)
- C \(19\)
- D \(5\)
Answer & Solution
Correct Answer
(C) \(19\)
Step-by-step Solution
Detailed explanation
\(\Delta \(a^2 - 4(a)(5) \(a^2 - 20a \(a(a - 20) \(0 Integral values for \(a\): \(1, 2, \dots, 19\) Number of values: \(19\)
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