3ar+ 8n Luas permukaan air dalam sebuah mangkuk, A cm?, ialah A = Diberi bahawa kadar perubahan %3D 4r luas permukaan ialah 4cm?s. Cari 3rr2+ 8t The surface area of water in a bowl, A cm?, is A = Given that the rate of change of the surface 4r area is 4cm?s, Find dA (a) apabila r 4cm when r = 4cm (b) kadar perubahan jejari, dalam cms, apabila jejarinya ialah 4cm. the rate of change of the radius, in cms', when its radius is 4cm. c) perubahan kecil bagi luas jika jejarinya bertambah daripada 4cm kepada 4.05cm. the small change of area if its radius increases from 4cm to 4.05cm.
3ar+ 8n Luas permukaan air dalam sebuah mangkuk, A cm?, ialah A = Diberi bahawa kadar perubahan %3D 4r luas permukaan ialah 4cm?s. Cari 3rr2+ 8t The surface area of water in a bowl, A cm?, is A = Given that the rate of change of the surface 4r area is 4cm?s, Find dA (a) apabila r 4cm when r = 4cm (b) kadar perubahan jejari, dalam cms, apabila jejarinya ialah 4cm. the rate of change of the radius, in cms', when its radius is 4cm. c) perubahan kecil bagi luas jika jejarinya bertambah daripada 4cm kepada 4.05cm. the small change of area if its radius increases from 4cm to 4.05cm.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:3ar2+ 8
13. Luas permukaan air dalam sebuah mangkuk, A cm?, ialah A =
Diberi bahawa kadar perubahan
4r
luas permukaan ialah 4cm?s. Cari
3ar2+ 87
The surface area of water in a bowl, A cm?, is A =
Given that the rate of change of the surface
47
area is 4cm2s. Find
dA
(a)
apabila r = 4cm
dr'
dA
when r = 4cm
dr
(b) kadar perubahan jejari, dalam cms, apabila jejarinya ialah 4cm.
the rate of change of the radius, in cms', when its radius is 4cm.
(c) perubahan kecil bagi luas jika jejarinya bertambah daripada 4cm kepada 4.05cm.
the small change of area if its radius increases from 4cm to 4.05cm.
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