There is one element in the set A
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There is one element in the set A
Given A= {x\(\in\) N |x.3=4}
How many elements are there in the set A?
Given A= { 3,5,7,...,99}.How many elements are there in the set A?
(x-3)6=(x-3)4
xεN
42x-3=32x+4
x εN
42x-3=32x+4
x εN
42x-3=32x+4
x εN
(3x-2)3=125
xεN
x εN
5x+3-5x=175
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Exer 1: On line x, y, given 10 points A1, A2, A3, ..., A10. From point A outside xy, we connect A to A1, A2 to A3,... . How many angles whose vertices are A?