区間[1,5]における関数f(x)=(x-1)^ 2の平均値はいくらか?
16/3 f(x)=(x-1)^ 2 = x ^ 2-2x + 1 "[a、b] =(int_a ^ bf(x)dx)の" f(x) "の全点の平均/(ba)int_1 ^ 5(x ^ 2-2x + 1)dx = [x ^ 3/3-x ^ 2 + x] _1 ^ 5 = [5 ^ 3 / 3-5 ^ 2 + 5] - [ 1 / 3 1 1] 65 / 3 1 / 3 64 / 3(64/3)/ 4 16 / 3
16/3 f(x)=(x-1)^ 2 = x ^ 2-2x + 1 "[a、b] =(int_a ^ bf(x)dx)の" f(x) "の全点の平均/(ba)int_1 ^ 5(x ^ 2-2x + 1)dx = [x ^ 3/3-x ^ 2 + x] _1 ^ 5 = [5 ^ 3 / 3-5 ^ 2 + 5] - [ 1 / 3 1 1] 65 / 3 1 / 3 64 / 3(64/3)/ 4 16 / 3