Txoj kev nkhaus wavy (tseem hu ua txoj kev ncua sij hawm) yog lub tswv yim siv los daws qhov tsis sib xws ntawm daim ntawv f (x) g (x) > 0 \frac{f (x)}{g(x)} > 0 g(x)f(x)>0. \left(<0, \, \geq 0, \, \text{or} , \leq 0\right). (<0, ≥0, or≤0).
Peb puas tuaj yeem siv txoj kev nkhaus nkhaus hauv kev kuaj xyuas pawg thawj coj?
Yog koj tuaj yeem siv txoj kev nkhaus wavy los nrhiav kev daws teeb meem. Qhov no suav nrog hauv NCERT syllabus.
Yuav ua li cas koj pom qhov nkhaus nkhaus?
Wavy Curve Method
- Factorize tus muab polynomials.
- Tam sim no ua tus coefficient ntawm txhua qhov sib txawv rau qhov zoo.
- Multiply/dividing the equation two side of the inequality by -1 tshem tawm cov kos npe rho tawm thiab los ntawm kev ua qhov tsis sib xws yuav thim rov qab.
Yuav ua li cas rau ncua sij hawm hauv lej?
Interval arithmetic (tseem hu ua kev lej lej, kev ntsuas lub sijhawm, lossis lub sijhawm xam sijhawm) yog cov txheej txheem lej siv los muab ciam rau ntawm qhov yuam kev thiab ntsuas qhov yuam kev hauv kev suav lej cov lej lej siv lub sijhawm lej lej tuaj yeem lav txhim khu kev qha, ua lej kom raug.
Kev tsis sib xws plaub yog dab tsi?
A quadratic inequality is ib qho kev sib npaug ntawm qib thib ob uas siv cov cim tsis sib xws es tsis yog kos npe sib npaug Piv txwv ntawm plaub qhov tsis sib xws yog: x 2– 6x – 16 ≤ 0, 2x2 – 11x + 12 > 0, x2 + 4 > 0, x2– 3x + 2 ≤ 0 thiab lwm yam
