AP EAMCET · Maths · Sequences and Series
If the roots of the equation \(4 x^3-12 x^2+11 x+m=0\) are ir arithmetic progression, then \(m=\)
- A -3
- B 1
- C 2
- D 3
Answer & Solution
Correct Answer
(A) -3
Step-by-step Solution
Detailed explanation
\(4 x^3-12 x^2+11 x+m=0\) Let the roots be \(A-d, A, A+d\) \(3 A=3 \Rightarrow A=1\) and roots are \(1-d, 1,1+d\)…
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