Page 233 - Math Grade 12 (Basic)

PROEUS DARA

2 3
2
+ y + 3xy y' = 6x Sl §j y' = 6x- 3x y y
o
-
3
3 2
x + 3xy
6 ( )2 3
2
3 2
+ 3 y y + _ y y + xy y f + xy y = 6
2
1
1
ff
6-
y"
4 2 2 3 2 6
12iy(x -18) + x /(234/ + 108x )- 12x /(x + /) + 6x/(3- y)- 30x
2 3
+ 3xy )
. 2
1 7
= -x - sm x
7
6 5
t?lQlS f'(x) = x - 2cos2x = 6x + 4sin2x
4 4 3
f"(x) = 30x + 8cos2x , / )(x) = 120x - 6sin2x
5 2 6
/ )(x) = 360x - 32cos2x ' / )(x) = nox + 64sin2x
10 12 6
tD. ?lMSl / )(x) ttl f(x) = ~ = 120x-
X
7
t?lQlS f'(x) = 120 x (-6)x-
j"(x) = 120 X (-6) X (-7)X-S = 1) 2 X 120 X 6 X 7x-S
3 9 3 -9
/ \x) = 120x(-6)x(-7)x(-8)x- = )" X 120 X 6 X 7 X 8x

10 -16
) X 120 X 6 X 7 X 8 X ••. X 15x
X il§j /IO)(x) = 1 X 2 X 3 X 4 X ••• X 15 = 1~~
X
X
120 = 1 X 2 3 4 5
X

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