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Why did you remove the article on June 21, 2018 about no information shows no life in visible universe? If a and b are positive integers such that gcd(a,b)=210, lcm[a,b]=210^3, and a** **Classify protein on the basis of chemical and physical properties? If the fifth term of a geometric sequence is 81 and the common ratio is 3/4, find the sum of the first 20 terms? Calculate stress and strain in round bar 12mm in diameter and 150mm long with tensile force of 400N acting on it?