Question
Download Solution PDFf అనేది అన్ని x ∈ R కోసం నిర్వచించబడిన డిఫరెన్సిబుల్ ఫంక్షన్గా ఉండనివ్వండి అంటే అన్ని x ∈ R, x ≠ 0కి f(x3) = x5. అప్పుడు \(\dfrac{df}{dx} (8)\) విలువ:
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DSSSB TGT Maths Male Subject Concerned- 23 Sep 2018 Shift 1
Answer (Detailed Solution Below)
Option 4 : 20/3
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DSSSB TGT Hindi Female 4th Sep 2021 Shift 2
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ఇవ్వబడింది:
f(x3) = x5 అన్ని x ∈ R, x ≠ 0 కోసం. అప్పుడు \(\dfrac{df}{dx} (8)\) యొక్క విలువ
⇒ f (x3) = x5 for all x ∈ R, x ≠ 0
Differentiating w.r.to x
⇒ (d/dx) f (x3) = (d/dx) x5
⇒ f' (x3) (d/dx) x3 = 5x4
⇒ f' (x3) 3x2 = 5x4
⇒ f'(x3) = (5/3) x2
Putting x3 = 8 to find f' (8)
Such that f'(8) =( 5 × (2)2)/3 = 20/3
⇒ 20/3
Last updated on May 12, 2025
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