Answer:
X = 4
I hope this helps
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Answer:
<h2>The answer is - 16</h2>
Step-by-step explanation:
<h3>

</h3>
where
n is the number of terms
From the question since we are finding the 5th term
n = 5
Substitute the value into the above formula and solve
We have

We have the final answer as
<h3>- 16</h3>
Hope this helps you
Answer:
The length of b is
.
Step by step explanation:
Given information: In ΔABC, ∠A =∠C, ∠B = ß (where ß is an acute angle), and BC = x.
Since two angles are same therefore triangle ABC is an isosceles triangle and side AB and BC are congruent.

According to Law of cosine





Therefore the length of b is
.