1)

The area bounded by y - 1 = lxl, y = 0 and  |x| = 1/2 will be


A) 3/4

B) 3/2

C) 5/4

D) None of these

Answer:

Option C

Explanation:

The given lines are,

y - 1 = x, x ≥ 0;

y - 1 = -x, x<0

y = 0, x = -1/2, x < 0; x = 1/2, x ≥ 0

so that the area bounded is as shown in the figure.

 1562021810_picc.JPG

Required area = 2$\int_{0}^{1/2} (1+x).dx$ = 2$\left(x+\frac{x^{2}}{2}\right)_0^\frac{1}{2}$

= 2 (1/2 + 1/8) = 5/4