11please

this is a hint

1. Consider the functional (0) = (1+x)(1) dr where y C- and y(0) = 0 and y(1) = 1. Show that 83(90, h) = 0 for all he C and h(0) = h(1) = 0, where yo(2) = ln(1 + r)/In 2. 11. J(y) = (1 + r)ydt. We find 8J(y, h) -2 (1 + r)y'l'dr