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Fourth grade oral arithmetic, simple
The proof of limit multiplication of sequence
How to prove the multiplication law of sequence limit according to the strict definition of limit?
Sequence A1, A2,..., an,... Has limit a, sequence B1, B2,..., BN,... Also has limit B
Limit multiplication: LIM (an * BN) = LIM (an) * LIM (BN) = a * B
prove:
anbn-AB=(an-A)(bn-B)+B(an-A)+A(bn-B)
When there is | B | an-a | N and | B N = max (n | 8321;, n # 8322;), there is | an-a | bn-b | n|
Can function limit algorithm be directly applied to sequence?
The relationship between function limit operation and sequence limit operation is: when x tends to x0, the sufficient and necessary condition for the existence of limit is that the limit of any sequence xn and f (xn) tending to x0 exists and is equal
What kind of thoughts and feelings are expressed in forever Lilliput
The comic book gives us the most beautiful memory and washes our young and ignorant soul. It expresses the author's love for the comic book and his unforgettable feelings for the innocent years of childhood
What is leap year? How to judge leap year in Java?
① If (year% 4 = = 0 & & year% 1! = 0) | (year% 400 = = 0)){ System.out.println (...
(-47.65)*2 6/11+(-37.5)*(-2 6/11)+10.5*(-7 5/11)
Simple operation
(- 47.65) * 2 and 6 / 11 + (- 37.15) * (- 2 and 6 / 11) + 10.5 * (- 7 and 5 / 11)
= 2 and 6 / 11 × (37.15-47.65) + 10.5 * (- 7 and 5 / 11)
=-10.5 * (2 + 6 / 11 + 7 + 5 / 11)
=-10.5*10=-105
Xiaogang plans to finish reading a 120 page story book in one week (seven days). On the first day, he reads 15 pages of the book, and the rest 16 pages a day. Can he finish it in the original time?
120 × (1-15) △ 16 = 120 × 45 △ 16, = 6 (days). 6 + 1 = 7 (days). A: it takes him seven days to finish the book, so he can finish it within the prescribed time
How to translate English from January to December
January: January: January: February: February: Feb: March: March: Mar April: April: Apr may: June: June: Jun July: July: Jul August: August: Aug September: SeptemberOctober: October: OCT
It means 65.45 degrees = (), 128 degrees 46'38 "= ()
65.45 degrees = 65 degrees 27 minutes 0 seconds 128 degrees 46 minutes 38 seconds = 128.8 degrees
A cuboid glass jar is 4 decimeters long and 3 decimeters wide. After 18 liters of water is poured into it, how deep is the water in the glass jar
18 ÷ (4 × 3) = 1.5 decimeters
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