A{1,2,3,k},B{4,7,a4,a2+3a},a,K属于自然数,映射fA→B使B中元素Y=3X+1与A中元素对应,求a,k
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A{1,2,3,k},B{4,7,a4,a2+3a},a,K属于自然数,映射fA→B使B中元素Y=3X+1与A中元素对应,求a,k
A{1,2,3,k},B{4,7,a4,a2+3a},a,K属于自然数,映射fA→B使B中元素Y=3X+1与A中元素对应,求a,k
A{1,2,3,k},B{4,7,a4,a2+3a},a,K属于自然数,映射fA→B使B中元素Y=3X+1与A中元素对应,求a,k
b=3a+1
a=4倍根号10
k=(根号10+4倍根号10-1)/3
a4=3*3+1
a=4次根号下10约等于1.778;
y=a2+3a=3.162+5.334=3k+1;
k约等于2.5