User manual - fx-570VN_PLUS

Vn-46
Ví duï tính toaùn theo phöông thöùc INEQ
x
2
+ 2 x – 3 < 0 B
Nc1(INEQ)1(aX
2
+ bX + c)
2(aX
2
+ bX + c < 0)
1 = 2 =- 3 =
=
x
2
+ 2 x – 3  0 B
Nc1(INEQ)1(aX
2
+ bX + c)
3(aX
2
+ bX + c  0)
1 = 2 =- 3 =
=
Löu yù: Nghieäm ñöôïc hieån thò nhö ñöôïc
neâu ôû ñaây khi Hieån thò tuyeán tính ñöôïc
löïa.
2x
3
− 3 x
2
 0 B
Nc1(INEQ)2(aX
3
+ bX
2
+ cX + d)
3(aX
3
+ bX
2
+ cX + d  0)
2 =- 3 =
=
3x
3
+ 3 x
2
– x  0 B
Nc1(INEQ)2(aX
3
+ bX
2
+ cX + d)
1(aX
3
+ bX
2
+ cX + d  0)
3 = 3 =- 1 =
=
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