Question

Write the coefficients of x 2 in each of the following: 

(i) 2 + x ² + x 

(ii) 2 – x ² + x 3 

(iii) \(\frac{π }{ 2}\) x² + x 

(iv) √2 x -1

Answer 1

(i) 2 + x² + x 

 In the above expression, the coefficient of x2 is 1.

(ii) 2 - x² + x³ 

In the above expression, the coefficient of x2 is -1.

(iii) \(\frac{ π}{2}\)x² + x  

In the above expression, the coefficient of x2 is π/2.

(iv) √2x - 1, or 0.x²+√2x - 1

In the above expression, the coefficient of x2 is 0.