1.Oblicz wartość wyrażeń
a.(1-3/5)²
b.(4-3 1/3)²
c.(1/3)²-(3/2)²
d.(2/5)²+(-1/2)
a.(1-3/5)²= 1- 9/25= 16/25
b.(4-3 1/3)²=16 - 10/3² = 16 - 100/9 = 16 - 11 1/9 = 4 8/9
c.(1/3)²-(3/2)²= 1/9 - 9/4 = 4/36-81/36 = - 77/36 = -2 5/36
d.(2/5)²+(-1/2)= 4/25 - 1/2 = 8/50 - 25/50 = - 17/50
a)(1-3/5)²= (2/5)² = 4/25
b) (4-3 1/3)²= (4-1)² = 9
c) (1/3)² - (3/2)²= (1/3 - 3/2)(1/3 + 3/2) = -(7/6) (11/6) =- 77/36
d) (2/5)² +(-1/2) = 4/25 - 1/2 = 8/50 - 25/50 = -17/50
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a.(1-3/5)²= 1- 9/25= 16/25
b.(4-3 1/3)²=16 - 10/3² = 16 - 100/9 = 16 - 11 1/9 = 4 8/9
c.(1/3)²-(3/2)²= 1/9 - 9/4 = 4/36-81/36 = - 77/36 = -2 5/36
d.(2/5)²+(-1/2)= 4/25 - 1/2 = 8/50 - 25/50 = - 17/50
a)(1-3/5)²= (2/5)² = 4/25
b) (4-3 1/3)²= (4-1)² = 9
c) (1/3)² - (3/2)²= (1/3 - 3/2)(1/3 + 3/2) = -(7/6) (11/6) =- 77/36
d) (2/5)² +(-1/2) = 4/25 - 1/2 = 8/50 - 25/50 = -17/50