The area bounded by the curves y = |x| -1 and y = - |x| +1 isa)1b)2c)2...
To find the area bounded by the curves, we need to find the points of intersection between the two curves.
Setting y = |x| - 1 and y = - |x| + 1 equal to each other, we get:
|x| - 1 = - |x| + 1
Adding |x| to both sides:
2|x| - 1 = 1
Adding 1 to both sides:
2|x| = 2
Dividing both sides by 2:
|x| = 1
Taking the positive and negative values of x, we get x = 1 and x = -1.
Now we can find the area between these two points by integrating the absolute difference between the two curves.
The integral of the absolute difference between the two curves from x = -1 to x = 1 is:
∫ [(|x| - 1) - (-|x| + 1)] dx
Simplifying the expression inside the integral:
∫ [2|x| - 2] dx
Splitting the integral into two parts:
∫ 2|x| dx - ∫ 2 dx
Integrating each part:
2 ∫ |x| dx - 2 ∫ dx
For the first integral, we can split it into two cases:
When x is positive, |x| = x:
2 ∫ x dx - 2 ∫ dx
Integrating:
x^2 - 2x + C
When x is negative, |x| = -x:
2 ∫ -x dx - 2 ∫ dx
Integrating:
- x^2 - 2x + C
Now we can find the definite integral from x = -1 to x = 1:
[x^2 - 2x] from -1 to 1 + [-x^2 - 2x] from -1 to 1
[(1)^2 - 2(1)] - [(-1)^2 - 2(-1)] + [-(1)^2 - 2(1)] - [(-1)^2 - 2(-1)]
[1 - 2] - [1 + 2] + [-1 - 2] - [1 + 2]
-1 - 3 - 3 - 3
-10
Therefore, the area bounded by the curves y = |x| - 1 and y = - |x| + 1 is -10.
Since the area cannot be negative, the answer is none of the given options (a) 1, b) 2, c) 2).