Question

Write the coefficient x2 in 3x3–2x+x4 –1

Answer 1

Step-by-step explanation:

Coefficient of x

2

in ax

2

+bx+c=0 is a.

Hence, coefficients of x

2

in

(i) 2+x

2

+x is 1

(ii) 2−x

2

+x

3

is −1

(iii)

2

π

x

2

+x is

2

π

(iv)

2

x−1 is 0