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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
\(\left\{\left[261-\left(36-31\right)^3.2\right]-9\right\}.1001.2016^0\)
\(=\left\{\left[261-5^3.2\right]-9\right\}.1001.2016^0\)
\(=\left\{\left[261-125.2\right]-9\right\}.1001.2016^0\)
\(=\left\{\left[261-250\right]-9\right\}.1001.2016^0\)
\(=\left\{11-9\right\}.1001.2016^0\)
\(=2.1001.2016^0\)
\(=2002.2016^0\)
\(=2002.1\)
\(=2002\)
={[126-5^2.2]-9}.1001
={[126-25.2]-9}.1001
={[126-50]-9}.1001
={76-9}.1001
=67.1001=67067
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.\(\left[545-\left(45+4.25\right)\right]:50-2000:250+2^{15}:2^{13}\)
=\(\left[545-145\right]:50-8+2^2\)
=\(400:50-8+4\)
=8-8+4
=4
b.\(\left[504-\left(25.8+70\right)\right]:9-15+9^0\)
=\(\left[504-270\right]:9-15+1\)
=234:9-14
=26-14
=12
261 - (36 - 31)2 . 2 - 9 : 1001
= 261 - 25 . 2 - 9/1001
= 261 - 50 - 9/1001
= 211 - 9/1001