thuc hien cac phep tinh sau 1 cach hop ly (3.4.2^16)^2/11.2^13.4^11-16^0
thuc hien cac phep tinh sau 1.2.3.....9-1.2.3.....8-1.2.3.....7.\(8^2\)
Voi 4 chu so 2 va cach phep tinh, hay thuc hien cac phep tinh de duoc ket qua la 9
22:2-2=9
lý bá hưng và các bạn xinh đẹp,học giỏi k cho mk nha
1/4 - 1/3+ 5/12 Thuc hien cac phep tinh (tinh hop li neu co the)
\(\dfrac{1}{4}-\dfrac{1}{3}+\dfrac{5}{12}\\ =\dfrac{3}{12}-\dfrac{4}{12}+\dfrac{5}{12}\\ =\dfrac{3-4+5}{12}\\ =\dfrac{4}{12}\\ =\dfrac{1}{3}\)
thuc hien cac phep tinh bang cach hop li : 4x51x7+2x86x7 +12x2x7
4x51x7+2x86x7+12x2x7=
(4 x7)x51+(2x7)x86+(2x7)x12=
28x51+14x86+14x12=
14x2x51+14x86+14 x12=
14x102+14x86+14x12=
14x(102+86+12)=
14x200=
2800
4x51x7+2x86x7+12x2x7
(4 x7)x51+(2x7)x86+(2x7)x12
28x51+14x86+14x12
14x2x51+14x86+14 x12
14x102+14x86+14x12
14x(102+86+12)
14x200
2800
=4x51x7+2x86x7+12x2x7
=(4 x7)x51+(2x7)x86+(2x7)x12
=28x51+14x86+14x12
=14x2x51+14x86+14 x12
=14x102+14x86+14x12
=14x(102+86+12)
=14x200
2800
Thuc hien cac phep tinh sau ;a] [5/6 + 6/9 ] * 3/11
b] [ 7/6 - 1/4 ] \ 3/4
ko thuc hien phep tinh hay so sanh cac tong sau
5a+a5...............aa+55
tra loi nhanh cho minh cai
thuc hien cac phep tinh
1-2-3+4+5-6-7+...+2001-2002-2003+2004
thuc hien phep tinh a) 4.52- 81 : 32 ( cac ban giup minh nhe)
thuc hien phep tinh:
(125^3.5.7^5-175^5):2016^2016
tra loi day du cac ban nhe minh tick
(125^3.5.7^5-175^5):2016^2016
(5^9.5.7^5-5^10.7^5):2016^2016
(5^10.7^5-5^10.7^5):2016^2016
0:2016^2016=0
Nho tick do nha
(125^3.5.7^5-175^5):2016^2016
= 0 : 2016^2016
= 0
( 1253 x 5 x 75 - 175^5 ) : 20162016
=[(5^3)^3 x 5 x 7^5 -175^5) : 2016^2016
= (5^9 x 5 x 7^5 - 175 ^5) : 2016 ^2016
=[( 5^10 x 7^5) - (25 x 7 )^5] : 2016^2016
=[(5^10 x 7^5 ) - (25^5 x 7^5)] :2016^2016
={[(5^10 x 7^5 ) - [(5^2)^5 x 7^5]} :2016^2016
=[(5^10 x 7^5) - (5^ 10 x 7^5)] :2016^2016
= 0 :2016^2016
= 0
