Plz answer this as quickly as possible I've attached the formulas, it is due in less then 1hr30 I'll ???? if it's early

 

  

3. The confluent hypergeometric functions (A9.1), whose first parameter is a negative integer, are related to Laguerre polynomials by (A9.6), T(n + a + 1) n!I (a + 1) Using the generating integral, calculate the integrals La(x) = I 21+2 2Zr nao 1F1(-n, a +1, z). Toe [1P(-ne) 1. and deduce the normalisation of the radial wave functions Rnt (r) of the hydrogen atom. Fi(-nr, 21 +2, 2Zr nao dr (11) (12)