Oblicz wartość wyrażenia.... Question from @Takatoo234

marymax X=-2 , y=3
$2 x^{2} y-3xy+1=2*(-2)^2*3-3*(-2)*3+1=6*4-3*(-6)+1=24+18+1=43$

0 votes Thanks 0

brightersicy Wiemy, że $x = -2y = 3$
Stąd:
$\left \{ {{x=3} \atop {-2y=3}} \right. \\ \left \{ {{x=3} \atop {y=-\frac{3}{2}}} \right.$ .

Niech $W(x,y) = 2x^{2}y + 3xy+1$ .

Liczymy $W(3, -\frac{3}{2}):$ .
$W(3, -\frac{3}{2}) = 2*3^{2}*(-\frac{3}{2}) - 3*3*(-\frac{3}{2}) + 1 = -3^{3} + 9*\frac{3}{2}+1 =$ $-27 + \frac{27}{2}+1 = -27 + 13.5+1 = -27 + 14.5 = -12.5$ - odpowiedź.

0 votes Thanks 1

Past simple (affirmative) Write the past simple form of the verbs. swim leave write make say meet

Choose the correct articles to complete the sentences. (a, - , the) 1. I want to live in ..... countryside. 2.Do you want to speak to Clare? She's in ..... garden. 3. ..... parks are a great place to relax.

Present simple and present continuous Write the present continous form of the verbs. Przykład: I go - I am going 1.You don't smile - 2.We live - 3.I eat - 4.He doesn't cycle - 5.They wear - 6.Sara looks -

Umieścić słowa w odpowiedniej kolejności. 1.Lucy's got/curly/hair/red/long 2.straight/she's got/hair/short/black 3.hair/I've got/brown/medium-length 4.long/fair/straight/he's got/hair 5.my boyfriend's/a/moustache/got 6.wavy/medium-length/hair/Poppy's got/black

Tylko zadanie pierwsze

Zadania w załączniku , prosze o szybkie rozwiązanie Daje naj :)

Recommend Questions

Life Enjoy

Get in touch

Social