9 calcular las siguientes productorias. a. ∏ i=−1 4 3 i+7 = (3(-1)+7) x (3(0)+7) x (3(1)+7) x (3(2)+7) x (3(3)+7) x (3(4)+7) = 4 x 7x 10x 13 x 16 x 19 = 1106560 b. ∏ i=2 4 i i−1 +3 = ( 2 2− 1 + 3 ) x ( 3 3−1 +3 ) x ( 4 4−1 +3 ) = ( 2 1 + 3 1 ) x ( 3 2 + 3 1 ) x ( 4 3 + 3 1 ) =( 2+ 3 ) x ( 3+6 2 ) x ( 4+ 9 3 ) = 5 1 x 9 2 x 13 3 = 585 6 = 195 2 =97.5
