Question

If '(a^(3))/(b^(3))+(c^(3))/(d^(3))=(b^(3))/(a^(3))+(d^(3))/(c^(3))' then show that, '(a)/(b)+(c)/(d)=(b)/(a)+(d)/(c),' .​

Answer 1

Isomers are molecules that have the same molecular formula, but have a different arrangement of the atoms in space. That excludes any different arrangements which are simply due to the molecule rotating as a whole, or rotating about particular bonds.