For n = [1,2,3,4,5] you can evaluate the series as follows:

= 3 + (-6) + (12) + (-24) + (48)
= 63 - 30
= 33
Answer:
Zero.
Step-by-step explanation:
The determinant of the coefficient matrix of the system is zero, since every coefficient is equal to zero.
The common factor of 18 and 42 is six
Answer:
Dang, You still waiting?
Step-by-step explanation:
I need help with things to T~T
Well, <T+<S will equal 11x +2
so the equation will be 5x+10 + 58 = 11x +2
5x + 68 = 11x +2
66 = 6x (subtract 2, subtract 5x)
x = 11 (division)
To check,
<T = 5 (11) +10
<T = 65
11(11)+2 = 123
<T+<S = 123
65+58 = 123