Answer: x = 0 or x = 5/4
Step-by-step explanation:
X=4
-4x4=-16+14=-2
2x4=8+7=15
-2 x 15=30
If you notice the terms, they're
7, -21, 63, -189 and so forth.
7*-3 = -21 and -21 * -3 is 63 and so forth, meaning the "common ratio" is -3.
now, for a common ratio say "r", which is a fraction, namely less than ±1 and more than 0, or |r| < 1 , you do have a convergent sequence.
however this one notice, |-3| is 3, and that's greater than 1 clearly, therefore is divergent, meaning the summation has no finite value.
Step-by-step explanation:
see the pic for the answer
2 solutions, the root to the equation is the same as the root to the solution also known as “double roots”
