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JEE Mains · Maths · STD 12 - 6. Application of derivatives

વક્ર \(y = xe^{x^2}\) ના બિંદુ \((1, e)\) આગળ નો સ્પર્શકએ  . . .  બિંદુમાંથી પસાર થાય.

  1. A \((2, 3e)\)
  2. B \(\left( {\frac{4}{3},2e} \right)\)
  3. C \(\left( {\frac{5}{3},2e} \right)\)
  4. D \((3, 6e)\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\left( {\frac{4}{3},2e} \right)\)

Step-by-step Solution

Detailed explanation

\(y = x{e^{{x^2}}}\) \((1,e)\) lies on this Now \(\frac{{dy}}{{dx}} = x{e^{{x^2}}}.2x + {e^{{x^2}}}.1\) Put \(x=1\) \(m=2e+e=3e\) Equation of tangent at \((1,e)\) \(y-e=3e(x-1)\) \(y-e=3ex-3e\) \(y=3ex-2e\) \(\left( {\frac{4}{3},2e} \right)\) satisfies it \(\therefore \) Answer…
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