If 1 ≤ |x| ≤ 3,then x belongs to the interval
[1, 3]
[-3, -1]
[-1, 3]
[-3, 3]
Consider the graph of y = |x|
When x is between (-3 and -1) and (1 and 3) |x| lies between 1 and 3
So A and B are correct.
Let I=∫31√3+x3dx, then the value of I lies in the interval
If the point (λ,λ+1) lies inside the region bounded by the curve x=√25−y2 and y-axis, then λ belongs to the interval
If R = {(x,y) | x ∈ N, y ∈ N, x + 3y = 12} then R−1 is