Answer:
Radius of the convergence is R = 
and,
The Interval of convergence is 
Step-by-step explanation:
Given function : Σ(21x)^k
Now,
Using the ratio test, we have
R = 
or
R = 
or
R = 
now,
for convergence R|x| < 1
Therefore,
< 1
or

and,
Radius of the convergence is R = 
and,
The Interval of convergence is 
In math, when you see the word "of" it usually means "times".
So the question is:
<u>2/3 times something = 10</u>
Multiply each side of the equation by 3 :
2 times something = 30
Divide each side by 2 :
<em> something = 15</em>
Answer:
area of trapezium in terms of x=1/2*x(x+3+x+1)
Step-by-step explanation:
Answer: yes(800/5=160)
Step-by-step explanation:
Answer:
Rise/Run = y/x
Step-by-step explanation:
On a number line the X-axis is on the bottom, and the Y-axis is on the Top.