Which of the following is the general term for the sequence m, -m, m, -m, . .?

a. m(-1)^(n-1)
b. (-m)^n
c. (-1)m^(n + 1)
d. (-1)m^(n - 1)

  A. m(-1)^(n-1)

Step-by-step explanation:

The degree of m doesn't change so none of the expressions with n as an exponent of m can possibly be correct. That leaves only choice A.

You will find that when alternating signs are required, the term (-1)^n will be a factor. An offset of ±1 can be added to the n to make the initial sign be what you want. Here we want +1 for n=1, so an exponent of (n-1) is appropriate.

-60.75

step-by-step explanation:

just add the numbers then put the negative sign on it

-3 degrees

step-by-step explanation: