Các câu hỏi tương tự
mn giup minh voi
A=5+5^2+5^3+....+5^100
a,CS chi a chia 6
b, cs chi a chia 16
c, tim x cn 4A+5=5^x+2
d, 4A +5 co phai la so chinh phuong khong
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mn giup minh voi
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Cho B=2+2^2+.....+2^2019
a, Tim x eN sao cho A+2=2^x+100
b, A+2 co phai la mot so chinh phuong khong
c, A =3+3^2+....+3^300
chung to A chia 13
d, 2A + 3 co phai la so chinh phuong ko
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tim x
1+3+5 +...+x=3200( x la so le )
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tinh gia tri bieu thuc
(3.4^2.2^7)^2:(3^2.2^20)
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Tim so tu nhien a nho nhat biet a chia cho 5;8;12 deu du 2;6;8 ai tra loi nhanh va dung thi minh like nha giup minh voi cam on ban nao da chi thank you
tim x biet : (11/12+11/12.23+11/23.24+...+11/89.100) + x = 2/3
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giup minh voi
a, 2A co phai la so chinh phuong khong
b, tim so du cua a khi chia cho 13
c, tim so du cua b khi chia cho 31
d, tim x biet ,4b + 5 = 5^x=100
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Bai 1. 12 chia het ( x + 3 )
bai 2. Tim so tu nhien x, biet 6x + 4 chia het cho 2x
cac ban nho giai chi tiet giup minh nha cam on