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JEE Mains · Maths · STD 12 - 8. Application and integration

ધારો કે \(x=0, x=1, y^2=x\) અને \(y=|\alpha x-5|-|1-\alpha x|+\alpha x^2\) દ્વારા પ્રથમ ચરણમાં ઘેરાયેલ પ્રદેશનું ક્ષેત્રફળ \(f(\alpha)\) વડે દર્શાવાય છે. તો (f(0) + f(1)) = ___ .

  1. A 9
  2. B 14
  3. C 7
  4. D 12
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Correct Answer

(C) 7

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\(\text {at } \alpha=0 \Rightarrow f(0)\) \(x=0, x=1, y^2=x\) \(y=|0 \cdot x-5|-|1-0 \cdot x|+0 \cdot x^2\) \(y=4\) \(A_1=\int_0^1(4-\sqrt{x}) d x\) \(=4 x-\left.\frac{x^{\frac{3}{2}}}{\frac{3}{2}}\right|_0 ^1\) \(=4-\frac{2}{3}(1)=\frac{10}{3}\)…
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