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प्रश्न
If the zeroes of the polynomial `ax^2+bx+(2a)/b` are reciprocal of each other, then the value of b is ______.
पर्याय
2
`1/2`
−2
`-1/2`
MCQ
रिकाम्या जागा भरा
उत्तर
If the zeroes of the polynomial `ax^2+bx+(2a)/b` are reciprocal of each other, then the value of b is 2.
Explanation:
P(x) = `ax^2+bx+(2a)/b`
⇒ `α. 1/α = c/a`
⇒ 1 = `((2a)/b)/(a/1)`
⇒ `1/1= 2/b`
⇒ b = 2
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