a) 4
∫ x2 dx = [ 1/3*x^3 ]04 = 64/3 = 21 1/3
0
b) 4
∫ x2 dx = [ 1/3*x^3 ]24 = 64/3 - 16/3 = 48/3 = 16
2
c) 5
∫ 2xdx = [ x^2 ]-15 = 25 -1 = 24
-1
d) 11
∫ 0,5xdx = [ 1/4 *x^2 ]1011 = 121/4 - 100/4 = 21/4 = 5 1/4
10
e) 20
∫ 5dx = [5x]1020 = 100 - 50 = 50
10
f) 1
∫ x3 dx = [ 1/4 *x^4 ]01 = 1/4
0
g) 3
∫ 0,5x2 dx = [1/6 *x^3 ]03 = 27/6 = 9/2 = 4,5
0
h) 0
∫ 1/3 x3 dx = [ 1/12 * x^4 ]-20 = - 16/12 = -4/3
-2
i) -1
∫ 1/8 x4 dx = [ 1/40 * x^5 ]-2-1 = -1/40 + 32/40 = 31/40
-2
j) 4
∫ 0,5 x2 dx = [ 1/6 x^3]-44 = 64/6 + 64/6 = 128/6 = 64/3 = 21 1/3
-4
k) 1
∫ x5 dx = [ 1/6 x^6]-11 = 1/6 - 1/6 = 0
-1
l) 100
∫ 1 dx = [x]90100 = 100 - 90 = 10
90