Question

旻

請問（2）的ii 、i的最後一行是怎麼算的🙏

X4 2 + (x)=X²-₂X + ₂
d
(1) ² √x (f ³(2x-1)) | X ²) (2) * # ² (f²(2x-1)) | x-)
ď²
dx..
sol fix) = x ²³² 2x+ ²
fix=3x²³-2
fix= bx
™ F xf²(²x-1) { x = 1
IV
=√xtf(₂x+1)^³/x = 1
(
3
(f₁²x-1)) ³² f'(2x-1)₁ 2 | X=1
• 3 (f(u) ³. f'(1). 2
= 6 ₁1 17 ² - 1 1) = 6
15x45 chb
对教教之導函移
(2) d² £³(2x-1)
2
Lj7 d X²
d
dx (ax f(xx-11)
= d.
d
• 1x
· (6⋅ ( f (²X-1)) ²³+ -f'(²x-1))
-6 {[=( frox-11). ffox+) Off₂x-1
不如抱守清
d
dx²
f³(2x-1)=x=1 A
= tf at fo fin] fiv + fivlfi
2]}
=
65 4.[ 1 · 1 · 1] + (1) ² [ 6X2]
= 6 {4+12} = 96
11