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Multiple Choice Questions

Find the value of lambda for which equation lambda 2 x sup2 3x 5 0 has non real roots ........

Quantitative Aptitude (CDS) Quadratic Equations

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Find the value of λ for which equation ( λ-2)x²+3x+5=0 has non real roots.

λ ≤ 49/20

λ ≥ 49/20

λ = 49/20

λ ∈(49/20,∞)

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Explanation:

condition for non real roots D < 0
b² - 4ac < 0
3²-4.(λ- 2).5 < 0
9- 20λ+40 < 0
λ > 49/20
λ ∈(49/20,∞)

By: bhavesh kumar singh

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