b2=6
b4=24
b2=b1*q
b4=b1*q³
b1=6/q и b1=24/q³
6/q=24/q³
6q³=24q
q²=4
1) если q= 2
b1=3
S8= (3*(1-2⁸))/(1-2)= 3*(1-256)/-1= 765
2) если q= -2
b1= -3
S8= (-3*(1-(-2)⁸))/1+2= (-3*(1-256))/1+2= 255
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
b2=6
b4=24
b2=b1*q
b4=b1*q³
b1=6/q и b1=24/q³
6/q=24/q³
6q³=24q
q²=4
1) если q= 2
b1=3
S8= (3*(1-2⁸))/(1-2)= 3*(1-256)/-1= 765
2) если q= -2
b1= -3
S8= (-3*(1-(-2)⁸))/1+2= (-3*(1-256))/1+2= 255