Odpowiedź:
zad 3
II
3(y + 1) - 1 2/3y dla y = - 1/3
3(- 1/3 + 1) - 1 2/3 * (- 1/3) = - 1 + 3 - 5/3 * ( - 1/3) = 2 + 5/9 = 2 5/9
I
2x² - 5 dla x = - 2
2( - 2)² - 5 = 2 * 4 - 5 = 8 - 5 = 3
II - I = 2 5/9 - 3 = 2 5/9 - 2 9/9 = - 4/9
Odp: A
III
z(2 - z) dla z = 3
3(2 - 3) = 3 * (- 1) = - 3
IV
√(6 1/4) - 2,5w dla w = 2
√(25/4) - 2,5 * 2 = 5/2 - 5 = 2 1/2 - 5 = 2 1/2 - 4 2/2 = - 2 1/2
III + IV = - 3 + (- 2 1/2) = - 3 - 2 1/2 = - 5 1/2 = - 5,5
Odp: D
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Odpowiedź:
zad 3
II
3(y + 1) - 1 2/3y dla y = - 1/3
3(- 1/3 + 1) - 1 2/3 * (- 1/3) = - 1 + 3 - 5/3 * ( - 1/3) = 2 + 5/9 = 2 5/9
I
2x² - 5 dla x = - 2
2( - 2)² - 5 = 2 * 4 - 5 = 8 - 5 = 3
II - I = 2 5/9 - 3 = 2 5/9 - 2 9/9 = - 4/9
Odp: A
III
z(2 - z) dla z = 3
3(2 - 3) = 3 * (- 1) = - 3
IV
√(6 1/4) - 2,5w dla w = 2
√(25/4) - 2,5 * 2 = 5/2 - 5 = 2 1/2 - 5 = 2 1/2 - 4 2/2 = - 2 1/2
III + IV = - 3 + (- 2 1/2) = - 3 - 2 1/2 = - 5 1/2 = - 5,5
Odp: D