Page 91 - Math Grade 12 (Advance)

PROEUS DARA

thfJU.r! : ~'i5tHlw~sum'i5fflbHS?lt3S f tt:irutsl'CH2lg 'i52l~rtm X= a §b
II l.j c; 1 "" &
u
Jl
2
X= b Rrul~bt:SHi5 L = r + [f'(x)] dx '1
a

'i52l~rnn X = 0 sb X = I '1
&

3
4J2:;
tR'i:flS y = f(x) = -x~ -I
3

1
L = fJI + (f'(x)/dx = J,Jl+8;cdx
a 0
I
2
1
= J( 1 + 8x) ( 1 + 8x)'dx
0 8
3 I 3
2
2
= ~ .l[c1 + 8x) ] = _!_(9) - _!_ = 27 - 1 = 26 = ~ bnffl!Jt~b '1
3 8 0 12 12 12 12 6

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