Question

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Answer 1

a)2*(1020/85+205)/[33*18-(50*10+23*4)]+1343/17-262=
=2*(1020/85+205)/[33*18-(500+92)]+1343/17-262=
=2*(1020/85+205)/[33*18-592]+1343/17-262=
=2*(1020/85+205)/[594-592]+1343/17-262=
=2*(1020/85+205)/2+1343/17-262=
=2*(12+205)/2+1343/17-262=
=2*217/2+1343/17-262=
=217+1343/17-262=
=217+79-262=
=296-262=34


b)(3*15¹²+2*15¹²)/15¹¹+(3²+3²)³/(3³+3³)/3+1²⁰⁰⁵-2005⁰=
=(3+2)*15¹²/15¹¹+(3²+3²)³/(3*3²+3*3²)/3+1-1=
=5*15¹²⁻¹¹+(3²+3²)³/[(3+3)*3²]/3=
=5*15¹+18³/[(6*9)/3]=
=5*15+18³/(54/3)=
=5*15+18³/18=
=75+18³⁻¹=
=75+18²=
=75+324=399