A={ [ 261-(36-31)^3*2]-9}*1001 =?
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={[126-5^2.2]-9}.1001
={[126-25.2]-9}.1001
={[126-50]-9}.1001
={76-9}.1001
=67.1001=67067
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\(\left\{\left[261-\left(36-31\right)^3.2\right]-9\right\}.1001.2016^0\)
\(=\left\{\left[261-5^3.2\right]-9\right\}.1001.2016^0\)
\(=\left\{\left[261-125.2\right]-9\right\}.1001.2016^0\)
\(=\left\{\left[261-250\right]-9\right\}.1001.2016^0\)
\(=\left\{11-9\right\}.1001.2016^0\)
\(=2.1001.2016^0\)
\(=2002.2016^0\)
\(=2002.1\)
\(=2002\)
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a) 23.15 -[115-(12-5)2 ]
= 23.15 -[115-36]
= 8.15 -79
= 120-79
=41
b)5.[(85 - 35 : 7) :8 + 90 ] - 50
=5 .[80:8+90]-50
=5.100-50
=500-50
=450
c){[261 - ( 36-31)3.2 ]-9}.1001
={[261 - 125.2 ]-9}.1001
={[261 -250 ]-9}.1001
={11-9}.1001
=2.1001
=2002
d)3.102 - [1200 - ( 42 - 2.3)3]
=3.100-[1200 -(16-6)3 ]
=300-[1200-1000]
=300-200
=100
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b, B = 1 + 2 + 2^2 + 2^3 +.....+ 2^2013
2B = 2.(1 + 2 + 2^2 + 2^3 +.....+ 2^2013)
2B = 2 + 2^2 + 2^3 + 2^4 +.....+ 2^2014
2B - B = 2^2014 - 1
B = 2^2014 - 1
A={ [ 261-(36-31)^3*2]-9}*1001
={[261-53*2]-9}*2001
={[261-125*2]-9}*2001
={[261-250]-9}*2001
= 2*2001
= 4002
A={[261-(36-31)3.2]-9}.1001
A={[261-53.2]-9}.1001
A={[261-125.2]-9}.1001
A={[261-250]-9}.1001
A={11-9}.1001
A=2.1001
A=2002