Solve for x:
x^9 = n x
Subtract n x from both sides:
x^9 - n x = 0
Factor x and constant terms from the left hand side:
-x (n - x^8) = 0
Multiply both sides by -1:
x (n - x^8) = 0
Split into two equations:
x = 0 or n - x^8 = 0
Subtract n from both sides:
x = 0 or -x^8 = -n
Multiply both sides by -1:
x = 0 or x^8 = n
Taking 8^th roots gives n^(1/8) times the 8^th roots of unity:
Answer: x = 0 or x = -n^(1/8) or x = -i n^(1/8) or x = i n^(1/8) or x = n^(1/8) or x = -(-1)^(1/4) n^(1/8) or x = (-1)^(1/4) n^(1/8) or x = -(-1)^(3/4) n^(1/8) or x = (-1)^(3/4) n^(1/8)
Answer:
154
Step-by-step explanation:
If the 7th term is 77 and the 8th term is 231, you have to subtract them and get your answer.
231-77=154
154 is the common ratio.
(if another person gets the same answer it is probably correct)
Answer:
<u>Gradient</u><u> </u><u>of</u><u> </u><u>line</u><u> </u><u>t</u><u> </u><u>is</u><u> </u><u>-</u><u>1</u><u>/</u><u>5</u>
Step-by-step explanation:
Answer:
2 1/2
Step-by-step explanation:
