25+25+25+26+25+25+25=
25^28+25^24+25^20+...+25^4+1/25^30+25^28+25^26+...+25^2+1
Tính
\(A=\frac{25^{28}+25^{24}+25^{20}+...+25^4+1}{25^{30}+25^{28}+25^{26}+...+25^2+1}\)
Rút gọn \(\frac{25^{28}+25^{24}+25^{20}+...+25^4+1}{25^{30}+25^{28}+25^{26}+...+25^4+25^2+1}\)
\(A=\frac{25^{28}+25^{24}+25^{20}+...+25^4+1}{25^{30}+25^{28}+25^{26}+...+25^2+1}\)
1.rút gọn phân số
\(\frac{25^{28}+25^{24}+25^{20}+...+25^4+1}{25^{30}+25^{28}+25^{26}+...25^2+1}\)
Rút gọn phân số : \(A=\frac{25^{28}+25^{24}+25^{20}+....+25^4+1}{25^{30}+25^{28}+25^{26}+....+25^2+1}\)
\(A=\frac{25^{28}+25^{24}+25^{20}+...+25^4+1}{25^{30}+25^{28}+25^{26}+...+25^2+1}=25^{30}+25^{26}+25^{22}+25^{18}+25^{14}+25^{10}+25^6+25^2\)
Tính A=2528 +2524+2520+...+254+1/2530 +2528+2526+...+252+1
A=2528+2524+2520+......+254 phần 2530+2528+2526+......+252
25+25+26+25+36+29
140
giúp tớ nhé
tớ bị trừ 590 điểm
cảm ơn trước
số đó là
25+25+36+25+36+29
=140
ai k tui
tui k lại cho
25 + 25 + 26 + 25 + 36 + 29
=140
mk k bn rùi, bạn k mk nha