2. (a) For the H2 molecule, =c1A+c2B, that is, apply MO theory through LCAO (linear combination of atomic orbitals) to obtain the energy MO. However, for convenience of calculation here, [\int AB\tau d=0. Leave \int AHBdr = \int BHAdr = [\int AHAdr = [\int BHBdr=1. And find it using the Secular equation variational method that minimizes E.(b) Solve the answer to (a) to find the energies of the bonding orbital and anti-bonding orbital.(c) Using the answers to (a) and (b), find the wavefunction of the two normalized orbitals.