5 mu 6 cia 5 mu 3 cong 3 mu2 nhan 3 mu 3 tru 3 mu 4 nhan 3
3 mu 3 nhan 9 tru 3 mu 4 nhan 3 cong 5 mu 8 nhan 5 mu 0 tru 5 mu 12 chia 25 mu 2
= 3^6 - 4 x 3 + 5^8 x 5^0 : 25^2
= 729 - 12 + 5^8 x 5^0 : 5^4
= 729 - 12 + 5^4
= 729 - 12 + 625
= 717 + 625
= 1342
\(3^3.9-3^4+5^8.5^0-5^{12}:25^2\)
\(=27.9-81+3905625.1-244140625:625\)
\(=-1235961951^{13}\)
7 nhan 6 mũ 10 nhan 2 mu 20 nhan 3 mu 6-2 mu 19 nhan 6 mu 15 phần 9 nhân 6 mu 19 nhan 2 mu 9 -4 nhan 3 mu 17 nhan 2 mu 26
7.6^10.2^20.3^6-2^19.6^15/9.6^19.2^9-4.3^17.2^26
8 mu 2 chia 9 cong 50 chia 2 tru ba mu ba nhan 3 mu 0
(tinh nhanh neu co the)
8^2:9+50-3^3x3^0
=64:9+50-27x1
=....
(tự tính nha mk thấy đề sai sai hay sao ý)
THÔNG CẢM
ỦNG HỘ MK 1 TÍCH ĐI mK BỊ TRỪ 20 ĐIỂM RỒI cảm ơn .mk tích lại cho
6 mu 5 nhan 2 mu 7 tren 3 mu 4 nhan 2 mu 10
65 x. 27 : 34 . 210
= 65 x 1 : 34 . 23
= 46656 : 81 . 8
= 72(Chả biết đúng không nữa)
\(6^5.\frac{2^7}{3^4}.2^{10}\)
\(=2^5.3^5.\frac{2^7}{3^4}.2^{10}\)
\(=2^{15}.3.2^7\)
\(=2^{22}.3\)
chung to rang B = 1/2mu 2 cong 1/3 mu 2 cong 1/4 mu 2 cong 1/5 mu 2 cong 1/6 mu 2cong 1/7 mu 2 cong 1/8 mu2 nho hon 1
bai 2, viet gon duoi dang 1 luy thua ;
a, 3 mu 6 nhan 3 mu 8 b, 2 mu 7 nhan 2 mu 11 c 5 mu 4 nhan 5 mu 6 d,16 nhan 2 mu 5
e, 3 mu 7 nhan 2 mu 7 f, 25 nhan 5 mu 7 nhan 125 g, 27 nhan 3 mu 4 nhan 9 h, 64 nhan 8 nhan 2 mu5
giup minh voi thu 6 la minh can roi ai nhanh minh nhan like
3 mu 6 chia 3 mu 2 cong 2 mu 3 nhan 2 mu 2
\(3^6:3^2+2^3.2^2\)
\(3^{6-2}+2^{3+2}\)
\(3^4+2^5\)
\(81+32=113\)
3^6:3^2+2^3x2^2
=36-3+23+2
=33+25
=27+32
=59
chung minh rang 8 mu 10 cong 2 mu 20 chia het cho 41
chung minh rang 313 mu 6 nhan 36 tru 313 mu 5 nhan 299 chia het cho 7
8^8+2^20
=(2^3)^8+2^20
=2^(3.8)+2^20
=2^24+2^20
=2^20.2^4+2^20
=2^20.(2^4+1)
=2^20.17 chia hết cho 17
k mk nha thanks bạn
bai 1, tinh ;
a, 3 mu 5 b, 2 mu 6 c, 2 mu 3 nhan 3 mu 2 d, 4 mu 3 nhan 5 mu 2
a, 3^5 = 3.3.3.3.3 = 405
b, 2^6 = 2.2.2.2.2.2 = 64
c, 2^3.3^2 = 8.9 = 72
d, 4^3.5^2 = 64.25 = 1600
TL :)
a) 35 = 243
b) 26 = 64
c) 23 . 32 = 8.9 = 72
d) 43 . 52 = 64.25 = 1600
Hok tốt ạ :33