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The area bounded by y=min(x, 2-x) with y...

The area bounded by `y=min(x, 2-x)` with `y=(x-1)^(2)` is K sq. units, then `[K]` is equal to (where, `[.]` is the greatest integer function)

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To find the area bounded by the curves \( y = \min(x, 2 - x) \) and \( y = (x - 1)^2 \), we will follow these steps: ### Step 1: Identify the curves The first curve is \( y = \min(x, 2 - x) \). This means we need to find where \( x \) and \( 2 - x \) intersect: - \( x = 2 - x \) gives \( 2x = 2 \) or \( x = 1 \). - Therefore, the curve \( y = \min(x, 2 - x) \) is a piecewise function: - For \( x \leq 1 \), \( y = x \). - For \( x \geq 1 \), \( y = 2 - x \). The second curve is \( y = (x - 1)^2 \), which is a parabola opening upwards with its vertex at \( (1, 0) \). ### Step 2: Find the points of intersection To find the area bounded by these curves, we need to find their points of intersection: 1. Set \( x = (x - 1)^2 \) for \( x \leq 1 \): \[ x = (x - 1)^2 \implies x = x^2 - 2x + 1 \implies x^2 - 3x + 1 = 0 \] Using the quadratic formula: \[ x = \frac{3 \pm \sqrt{9 - 4}}{2} = \frac{3 \pm \sqrt{5}}{2} \] 2. Set \( 2 - x = (x - 1)^2 \) for \( x \geq 1 \): \[ 2 - x = (x - 1)^2 \implies 2 - x = x^2 - 2x + 1 \implies x^2 - x - 1 = 0 \] Using the quadratic formula: \[ x = \frac{1 \pm \sqrt{5}}{2} \] ### Step 3: Determine the area The area \( K \) can be calculated by integrating the difference of the two curves from the left intersection point to the right intersection point. The left intersection point is \( \frac{3 - \sqrt{5}}{2} \) and the right intersection point is \( \frac{3 + \sqrt{5}}{2} \). The area \( K \) is given by: \[ K = \int_{\frac{3 - \sqrt{5}}{2}}^{1} (x - (x - 1)^2) \, dx + \int_{1}^{\frac{3 + \sqrt{5}}{2}} ((2 - x) - (x - 1)^2) \, dx \] ### Step 4: Calculate the integrals 1. For the first integral: \[ K_1 = \int_{\frac{3 - \sqrt{5}}{2}}^{1} (x - (x^2 - 2x + 1)) \, dx = \int_{\frac{3 - \sqrt{5}}{2}}^{1} (x^2 - x + 1) \, dx \] 2. For the second integral: \[ K_2 = \int_{1}^{\frac{3 + \sqrt{5}}{2}} ((2 - x) - (x^2 - 2x + 1)) \, dx = \int_{1}^{\frac{3 + \sqrt{5}}{2}} (-x^2 + 3x - 1) \, dx \] ### Step 5: Combine the areas Finally, combine \( K_1 \) and \( K_2 \) to find \( K \). ### Step 6: Apply the greatest integer function Since the area \( K \) will be a small positive number, we can conclude that \( [K] = 0 \).
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