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Let f(x) = minimum (x+1, sqrt(1-x))" for...

Let f(x) = minimum `(x+1, sqrt(1-x))" for all "x le 1.` Then the area bounded by y=f(x) and the x-axis is

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To find the area bounded by the function \( f(x) = \min(x + 1, \sqrt{1 - x}) \) and the x-axis for \( x \leq 1 \), we will follow these steps: ### Step 1: Determine the intervals for \( f(x) \) We need to find where \( x + 1 \) and \( \sqrt{1 - x} \) intersect to determine the intervals for \( f(x) \). Set: \[ x + 1 = \sqrt{1 - x} \] Squaring both sides gives: \[ (x + 1)^2 = 1 - x \] \[ x^2 + 2x + 1 = 1 - x \] \[ x^2 + 3x = 0 \] Factoring out \( x \): \[ x(x + 3) = 0 \] Thus, \( x = 0 \) or \( x = -3 \). Since we are interested in the interval \( x \leq 1 \), we will consider \( x = -1 \) and \( x = 0 \). ### Step 2: Evaluate \( f(x) \) in the intervals 1. For \( x \in [-1, 0] \): - \( f(x) = x + 1 \) 2. For \( x \in [0, 1] \): - \( f(x) = \sqrt{1 - x} \) ### Step 3: Calculate the area under the curve The area \( A \) can be calculated as the sum of the areas under \( f(x) \) in both intervals: \[ A = \int_{-1}^{0} (x + 1) \, dx + \int_{0}^{1} \sqrt{1 - x} \, dx \] ### Step 4: Compute the first integral \[ \int_{-1}^{0} (x + 1) \, dx = \left[ \frac{x^2}{2} + x \right]_{-1}^{0} \] Calculating the limits: \[ = \left( \frac{0^2}{2} + 0 \right) - \left( \frac{(-1)^2}{2} - 1 \right) \] \[ = 0 - \left( \frac{1}{2} - 1 \right) = 0 - \left( -\frac{1}{2} \right) = \frac{1}{2} \] ### Step 5: Compute the second integral Using the substitution \( u = 1 - x \), then \( du = -dx \): - When \( x = 0 \), \( u = 1 \) - When \( x = 1 \), \( u = 0 \) Thus, the integral becomes: \[ \int_{0}^{1} \sqrt{1 - x} \, dx = \int_{1}^{0} \sqrt{u} (-du) = \int_{0}^{1} u^{1/2} \, du \] Calculating this integral: \[ = \left[ \frac{u^{3/2}}{3/2} \right]_{0}^{1} = \left[ \frac{2}{3} u^{3/2} \right]_{0}^{1} = \frac{2}{3} (1) - 0 = \frac{2}{3} \] ### Step 6: Combine the areas Now, adding both areas: \[ A = \frac{1}{2} + \frac{2}{3} \] Finding a common denominator (which is 6): \[ = \frac{3}{6} + \frac{4}{6} = \frac{7}{6} \] ### Final Answer The area bounded by \( y = f(x) \) and the x-axis is: \[ \boxed{\frac{7}{6}} \]

To find the area bounded by the function \( f(x) = \min(x + 1, \sqrt{1 - x}) \) and the x-axis for \( x \leq 1 \), we will follow these steps: ### Step 1: Determine the intervals for \( f(x) \) We need to find where \( x + 1 \) and \( \sqrt{1 - x} \) intersect to determine the intervals for \( f(x) \). Set: \[ ...
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