Question

2.
Write the coefficients of x2 in each of the following:
(I) 2+x²+x
(ii) π÷2 - x^2 + x
(iii) √2x-1​

Answer 1

Answer:

(I) 1

(ii) 1

(iii) no x2.

Answer 2

Answer:

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) π 2x 2 + x is π 2

(iv) √2x − 1 is 0