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a=1964.1965=3859260
b=1964.1964=3857296
Vì: 3859260>3857296
=>a>b
a=1234.1238=1527692
b=1236.1236=1527696
Do hàng đ v của a=2<b=6
=>a<b
a = 1963 x 1965
b = 1964 x 1964
Ta có:
b = ( 1963 + 1 ) x ( 1965 - 1 )
b = 1963 x 1965 - 1
Mà 1963 x 1965 > 1963 x 1965 - 1
Vậy a > b
Tương tự
Martin Luther King Jr. was born on January 15, 1929, in Atlanta, Georgia. King, both a Baptist minister and civil-rights activist, had a significant impact on race (1)__relation____ in the United States, beginning in the mid-1950s. Among his many efforts, King headed the Southern Christian Leadership Conference. Through his activism, he played an undeniable role in (2)___ending____ the legal segregation of African-American citizens in the South and other areas of the nation, as well as the creation of the Civil Rights Act of 1964 and the Voting Rights Act of 1965. King received the Nobel Peace Prize in 1964, (3)___among___ several other honors. King was (4)__assassinated____ in April 1968, and continues to be remembered as one of the most lauded African-American leaders in history, often (5)___memorise___ by his 1963 speech, "I Have a Dream."
nobita năm nay:2017-1964=53 (tuổi)
nobita was born in 7th Angust
In the manga, Nobita was born on August 7, 1964, in the third grade. In the anime, the first episode is Nobita in fourth grade, then fifth grade. He wears glasses. Nobita is often seen wearing a red or yellow t-shirt with white collar and blue pants. Nobita was built as a failed kid in every way, being lazy, giddy, slow to weak, unattractive (even silly) appearance, extremely black Enough and very poorly playing sports.
Bài 1:
a)29 x 2 x 3 = (20 + 9) x 2 x 3
=(20 + 9) x 6
=20 x 6 + 9 x 6
=120 + 54
=164
b)145 x 25 x 4 = 145 x (25 x 4)
=145 x 100
=14500
Bài 2:
a)245 x 27=245 x (30 - 3)
=245 x 30 - 245 x 3
=6615
b)1965 x 98 = 1995 x (100 - 2)
=1995 x 100 - 1995 x 2
=195510
Bài 3:
a)375 x 35 = 375 x (30 + 5)
=375 x 30 + 375 x 5
=13135
b)5432 x 72 = 5432 x (70 + 2)
=5432 x 70 + 5432 x 2
=391104
Ta có :
a) 3 x 5 x 8/4 x 2 x 25 = 1500
b) 30 x 7 x 12/6 x 10 x 4 = 16800
Đáp số : a) 1500
: b) 16800
a) = \(\frac{5\cdot7\cdot8\cdot9\cdot10}{7\cdot8\cdot9\cdot10\cdot11}\)
= \(\frac{5}{11}\) gạch hết các chữ số 7 , 8 , 9 , 10.
b) = \(\frac{3\cdot145+3\cdot55}{6\cdot215+6\cdot85}\)
= \(\frac{3\cdot\left(145+55\right)}{6\cdot\left(215+85\right)}\)
= \(\frac{3\cdot200}{6\cdot300}\)
= \(\frac{1}{3}\)
bn cho thiếu đề rồi
a= 3857295
b=3857296