Question

Va rog sa ma ajutati ! Efectuati : a) [7*(14-2*7):2]^2 b) (10^2-8^2) : 6 : 2 +1^2003 c) [17* (25-8*3)* 1^2001 -15 ] *2^3 -2 ^2 *3

Answer 1

Răspuns:

a)

[7 * (14 - 2 * 7) : 2]^2 =

[7 * (14 - 14) : 2]^2 =

[7 * 0 : 2]^2 =

[0 : 2]^2 =

0^2 =

0

b)

(10^2 - 8^2) : 6 : 2 + 1^2003 =

(100 - 64) : 6 : 2 + 1 =

36 : 6 : 2 + 1 =

6 : 2 + 1 =

3 + 1 =

4

c)

[17 * (25 - 8 * 3) * 1^2001 - 15 ] * 2^3 - 2^2 * 3 =

[17 * (25 - 24) * 1 - 15] * 8 - 4 * 3 =

[17 * 1 * 1 - 15] * 8 - 12 =

2 * 8 - 12 =

16 - 12 =

4