[2+4+6+ ....+240] x x[111x108-36x333] = ?
b=(15x3^2-16:2^2)x(3+3^2+3^3+3^4+...+362007)x(36x333-111x108)
Có : 36 x 333 - 111 x 108 = 36 x 3 x 111 - 111 x 3 x 36 = 0
=> b = 0
k mk nha
(2+4+6+...+100)x(36x333-108x111) = ?
{2+4+6+.....+100}x {36x333-108x111}
= 0 vì tích sau = 0
36 x 333 - 108x 111
= 36 x 3 x 111 - 108 x 111
= 108x 111 - 108 x 111
= 0
(2+4+6+8+...+10)x(36x333-108x111)
...=0
tại vì sao thì mik ko giải thích mik chỉ nói đáp án để bn tiến bộ
( 2 + 4 + 6 + 8 + ... + 10 ) x ( 36 x 333 - 108 x 111)
= ( 2 + 4 + 6 + 8 + ... + 10 ) x ( 36 x 3 x 111 - 108 x 111 )
= ( 2 + 4 + 6 + 8 + ... + 10 ) x ( 108 x 111 - 108 x 111 )
= ( 2 + 4 + 6 + 8 + ... + 10 ) x 0
= 0
( 2+4+6+....+100) X ( 36X333 - 108X111) = ?
Ta có:
( 2+4+6+....+100) X ( 36X333 - 108X111)
=( 2+4+6+....+100) X ( 36X3X111 - 108X111)
( 2+4+6+....+100) X ( 108X111 - 108X111)
( 2+4+6+....+100) X 0
=0
tinh nhanh(2+4+6+....+100)x(36x333-108x111)
Tính Nhanh :
(2+4+6+.....+100)x(36x333-108x111)
Ta có:
( 2+4+6+....+100) X ( 36X333 - 108X111)
=( 2+4+6+....+100) X ( 36X3X111 - 108X111)
( 2+4+6+....+100) X ( 108X111 - 108X111)
( 2+4+6+....+100) X 0
=0
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0 nhé bạn hiền
Tính nhanh
(2+4+6+...100)x(36x333-108x111)
\(\left(2+4+6+...+100\right).\left(36.333-108.111\right)=\)\(\left(2+4+6+...+100\right).\left(36.3.111-36.3.111\right)\)\(=\left(2+4+6+...+100\right).0\)\(=0\)
Tính nhanh
35x12+65x13
(2+4+6+.....100) x( 36x333-108x111)
a) = 35 x 12 + 65 x 12 + 65 = (35 + 65) x 12+ 65 = 100 x 12 + 65 = 1200 + 65 = 1265
b) (2 + 4 + 6 + ...+ 100) x ( 36 x 3 x 111 - 36 x 3 x 111) = (2 + 4 + 6 + ...+ 100) x 0 = 0
35x12+65x13=1265
(2+4+6+.....100) x(36x333-108x111)=0
Ta có
(2 + 4 + 6 + ...+ 100) x ( 36 x 3 x 111 - 36 x 3 x 111)
= (2 + 4 + 6 + ...+ 100) x 0
= 0
hok tốt