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

વક્ર \(x^{4} e^{y}+2 \sqrt{y+1}=3\) નું બિંદુ \((1,0)\) આગળ સ્પર્શક ........ બિંદુમાંથી પસાર થાય છે 

  1. A \((2,2)\)
  2. B \((-2,6)\)
  3. C \((-2,4)\)
  4. D \((2,6)\)
Verified Solution

Answer & Solution

Correct Answer

(B) \((-2,6)\)

Step-by-step Solution

Detailed explanation

\(x^{4} e^{y}+2 \sqrt{y+1}=3\) d.w.r. to \(x\) \(x^{4} e^{y} y^{\prime}+e^{y} 4 x^{3}+\frac{2 y^{\prime}}{2 \sqrt{y+1}}=0\) at \(P (1,0)\) \(y _{ P }^{\prime}+4+ y _{ P }^{\prime}=0\) \(\Rightarrow y _{ P }^{\prime}=-2\) Tangent at \(P (1,0)\) is \(y-0=-2(x-1)\) \(2 x+y=2\)…
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