Advertisements
Advertisements
प्रश्न
Which of the following expression are polynomial? Justify your answer:
`1/(5x^-2) + 5x + 7`
उत्तर
`1/(5x^-2) + 5x + 7 = 5x^2 + 5x + 7`
Here, the power of x are 2 and 1 respectively
2 and 1 both are whole numbers.
Hence, `1/(5x^-2) + 5x + 7` is a polynomial.
APPEARS IN
संबंधित प्रश्न
Write the coefficient of x2 in the following:-
`2+x^2+x`
Classify the following as linear, quadratic and cubic polynomial:
x2 + x
Write the coefficient of x2 in the following:-
2 - x2 + x3
Which of the following expression are polynomial? Justify your answer:
`1/7 a^3 - 2/sqrt(3) a^2 + 4a - 7`
Classify the following polynomial as polynomials in one variable, two variables etc.
xy + yz + zx
Write the coefficient of x2 in the following:
`pi/6 x + x^2 - 1`
Write the coefficient of x2 in the following:
3x – 5
Write the coefficient of x2 in the following:
(2x – 5)(2x2 – 3x + 1)
Give an example of a polynomial, which is monomial of degree 1.
Following expression is polynomial in one variable or not? State reason for your answer.
`3sqrtt + tsqrt2`
