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Answer: 5 + x =
I hope this helped!
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Try using a site like Khan Academy to get a solution
Answer:
10.80
Step-by-step explanation:
tan42=x/12
x=12tan42=10.80
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 
2 congruent sides would be an isosceles triangle