let-A-n-0-pi-4-x-n-1-cosx-cos-2x-2-dx-find-a-relation-of-recurrence-betwedn-the-A-n-

Question Number 67931 by mathmax by abdo last updated on 02/Sep/19

l e t A_{n} = \int_{0}^{\frac{π}{4}} x^{n} {1 + c o s x + c o s (2 x)}^{2} d x

f i n d a r e l a t i o n o f r e c u r r e n c e b e t w e d n t h e A_{n}