Question

Oblicz:

a) ½ razy [(-1)⁸ + (-1)⁸] =

c) (1⅓)³razy (-3¾)²÷ 3 - (⅓)²=

d) (-0,3)²÷0,1 - 0,2³ razy (2½)²=

Prosze rozwiąrzcie!

Answer 1

a) ½ razy [(-1)⁸ + (-1)⁸] =
= 1/2 * ( 1 + 1) =
= 1/2 * 2 =
= 1

c) (1⅓)³razy (-3¾)²÷ 3 - (⅓)²=
= (4/3)³ * (-15/4)² : 3 - 1/9 =
= 64/27 * 225/16 : 3 - 1/9 =
= 300/9 * 1/3 - 1/9 =
= 100/9 - 1/9 =
= 99/9 =
= 11

d) (-0,3)²÷ 0,1 - 0,2³ razy (2½)² =
= 0,09 : 0,1 - 0,008 * (5/2)² =
= 0,9 - 0,008 * 25/4 =
= 0,9 - 8/1000 * 25/4 =
= 0,9 - 2/40 =
= 9/10 - 1/20 =
= 18/20 - 1/20 =
= 17/20

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