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If a and b are the non–zero distinct roots of x2 + ax + b = 0, then the least value of x2 + ax + b is
- a)3/2
- b)9/4
- c)- 9/4
- d)1
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
If a and b are the non–zero distinct roots of x2+ ax + b = 0, th...
ANSWER :- c
Solution :- a and b of x^2 + ax + b = 0
Sum of roots : a + b = -a, 2a + b = 0
Product of roots : ab = b, b(a-1)
Minimum value of x^2 + ax + b at x =-a/2
We get a = -9/4
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If a and b are the non–zero distinct roots of x2+ ax + b = 0, th...
Community Answer
If a and b are the non–zero distinct roots of x2+ ax + b = 0, th...
ANSWER :- c
Solution :- a and b of x^2 + ax + b = 0
Sum of roots : a + b = -a, 2a + b = 0
Product of roots : ab = b, b(a-1)
Minimum value of x^2 + ax + b at x =-a/2
We get a = -9/4
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If a and b are the non–zero distinct roots of x2+ ax + b = 0, then the least value of x2+ ax + b isa)3/2b)9/4c)- 9/4d)1Correct answer is option 'C'. Can you explain this answer?
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