find the derivative of 4sin(2x)?

1 ⤊

2007-11-18 09:26:24 · 4 answers · asked by willwhit87 1 in Science & Mathematics ➔ Mathematics

y = 4 sin (2x)
dy/dx = 4 (2 cos 2x)
dy/dx = 8 cos 2x

2007-11-22 04:10:52 · answer #1 · answered by Como 7 · 1⤊ 0⤋

y=4sin (2x)
dy/dx=4*2*cos(2x)
=8cos(2x).

2007-11-18 17:31:22 · answer #2 · answered by Anonymous · 0⤊ 0⤋

Chain rule that baby!

4 sin(2x) where sin(2x) = u (x) and 2x = x

4 du(x) dx

4 * cos(2x) * 2

8cos(2x)

2007-11-18 17:35:10 · answer #3 · answered by jeevesofRKdia 2 · 0⤊ 0⤋

= 8cos(2x)

2007-11-18 17:29:36 · answer #4 · answered by Any day 6 · 0⤊ 0⤋