# Hotmath

Determine whether the sequence is arithmetic, geometric, or neither. Give explanation for your answer.

3, 15, 75, 375, ....

Find the number of terms in the given geometric series.

1 +
*
b
*
+
*
b
*
^{
2
}
+
*
b
*
^{
3
}
+.................
*
b
*
^{
10
}

Find
*
Sn
*
, the sum of the first
*
n
*
terms, for the following geometric series.

*
a
*
_{
1
}
= 1944,
*
a
*
_{
4
}
= 1,
*
r
*
= –1/4

Write the first three terms of the infinite geometric series that satisfy the condition:

*
a
*
_{
1
}
= 6,
*
S
*
= 24