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यदि द्विघात बहुपद f(x) = (a - 3) x^(2) ...

यदि द्विघात बहुपद `f(x) = (a - 3) x^(2) - 2ax + 3a - 7` का प्रत्येक `x in R` के लिए परिसर `[ - 1, infty]` है, तो a का मान निम्न में से किसमे स्थित है

A

[0, 2]

B

[3,5]

C

[4,6)

D

[5,7]

लिखित उत्तर

Verified by Experts

The correct Answer is:
D
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