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Which of the following expression is a polynomial in one variable? a) x+(2/x)+3.b) 3 root x+ (2/root x)+5. c) root 2 x^2 - root 3 x +6. d) x^10 + y^5 +8 |
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Answer» Correct option is (C) \(2x^2 - \sqrt 3 x + 6 \) (A) \(x + \frac 2x + 3 = \frac{x^2 + 2 + 3x}x\) (Not a polynomial) (B) \(3\sqrt x + \frac 2{\sqrt x} + 5 = \frac{3x + 2 + 5\sqrt x}{\sqrt x}\) (Not a polynomial) (C) \(2x^2 - \sqrt 3 x + 6 \) is a polynomial in one variable (x). (D) \(x^{10} + y^5 + 8\) is a polynomial in two variables x & y. |
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