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JEE Mains · Maths · STD 12 - 7.2 definite integral

ધારો કે વિધેય \(f:[0,2] \rightarrow R\) એ \(f(x)=\left\{\begin{array}{cc}e^{\min \left[x^2, x-[x]\right\}}, & x \in[0,1) \\e^{\left[x-\log _e x\right]}, & x \in[1,2]\end{array}\right. \) મુજબ વ્યાખ્યાયિત છે, જ્યાં \([t]\) એ \(t\) અથવા તેનાથી નાનો મહત્તમ પૂર્ણાક દર્શાવે છે. તો સંકલ \(\int \limits_0^2 x f(x) d x\) નું મૂલ્ય \(......\) છે.

  1. A \(2 e -1\)
  2. B \(1+\frac{3 e }{2}\)
  3. C \(2 e -\frac{1}{2}\)
  4. D \((e-1)\left(e^2+\frac{1}{2}\right)\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(2 e -\frac{1}{2}\)

Step-by-step Solution

Detailed explanation

Minimum \(m \left\{ x ^2,\{ x \}\right\}= x ^2 ; x \in[0,1)\) \({\left[ x -\log _{ e } x \right]=1 ; x \in[1,2)}\) \(\therefore f ( x )=\left\{\begin{array}{l} e ^{ x ^2} ; x \in[0,1) \\ e ; x \in[1,2)\end{array}\right.\)…
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