Question

Se X= 1/2 e y = 2/3, calcule os valores das expressões:

a) x²+y²-1
b) x²-y+1
c) x³-y-2
d) x⁴-x²-y

pfvvvvvv me ajudeemm.. é pra amanhã. Quero contas pfvv

Answer 1

a) (1/2)² +(2/3)² -1
1/4 +4/9 -1
9 +16 -36/36
-11/16

b) (1/2)² -2/3 +1
1/4- 2/3 +1
3 -8 +12/12
7/12

c) (1/2)²-2/3-2
3 -8 -24/ 12
-29/12

d) (1/2)⁴ - (1/2)² - 2/3
3 - 6 - 16 / 24
-19/24