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

ધારો કે \(f(x)=x^{2025}-x^{2000}, x\in[0,1]\) અને અંતરાલ [0, 1] માં વિધેય \(f(x)\) નું લઘુતમ મૂલ્ય \((80)^{80}(n)^{-81}\) હોય. તો n = ___ છે.

  1. A \(-81\)
  2. B \(-40\)
  3. C \(-41\)
  4. D \(-80\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(-81\)

Step-by-step Solution

Detailed explanation

\(f(x)=x^{2025}-x^{2000}\) \(f ^{\prime}( x )=0 \Rightarrow x =\left(\frac{2000}{2025}\right)^{1 / 25}=\alpha(\)say\()\) \(\therefore f(0)=0, f(1)=0, f(\alpha)=\left(\frac{80}{81}\right)^{80} \cdot \frac{-1}{81}=80^{80} \cdot(-81)^{-81}\)
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app