Question

Plsssssssss repedeeeee dau coroanaaaaa
​

Answer 1

Răspuns:

Explicație pas cu pas:

24

a)(10a+3+30+a)/(70+a+10a+7)=(33+11a)/(77+11a)=(3+a)/(7+a)

b) (100a+10b+c+100b+10c+a+100c+10a+b)=100(a+b+c)+10(a+b+c)+(a+b+c)

[100(a+b+c)+10(a+b+c)+(a+b+c)]/5(a+b+c)=(100+10+1)/5=111/5

25

a)17^n(1+17)/7^n(1+7)=(17/7)^n×18/8=9/4×(17/7)^n

b)6^(n+2)-2×6^(n+1)-3×6^(n+1)=6^(n+1)×(6-2-3)=6^(n+1)

6^(n+1)/6^n(36-6-21)=6/9=2/3