For the set of valueses $x _ { 1 } = 1 , x _ { 2 } = 3 , x _ { 3 } = - 2,$ 2, a nd x4 = 6, find the following.
-$\sum _ { i = 1 } ^ { 4 } x _ { i } ^ { 2 } - 2$
A)6
B)42
C)32
D)-10

Question

Quizplus · Accepted Answer

First, calculate the square of each value: $1^2 = 1, 3^2 = 9, (-2)^2 = 4, 6^2 = 36$. Then sum these squares: $1 + 9 + 4 + 36 = 50$. Finally, subtract 2 from the sum: $50 - 2 = 48$. However, there seems to be a mistake in the options provided as none of them match the correct calculation. Based on the provided options, the correct calculation method leads to 48, not listed among the choices.

For the Set of Valueses x1=1,x2=3,x3=−2,x _ { 1 } = 1 , x _ { 2 } = 3 , x _ { 3 } = - 2,x1​=1,x2​=3,x3​=−2,

For the Set of Valueses $x _ { 1 } = 1 , x _ { 2 } = 3 , x _ { 3 } = - 2,$