Find the exact value of the expression.  figure 1.png)
 figure 2.png)
 answer.png)
Mathematics
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Write the quotient in the standard form.
A. 
- 
i
B. 
+ 
i
C. 
+ 
i
D. 
- 
i
Mathematics
Find the sum.Find the sum of the first 40 terms of the arithmetic sequence: 16, 11, 6, 1, . . .
A. -3360 B. -3252 C. -3260 D. -184
Mathematics
Divide and simplify to the form a + bi.
A. 
- 
i
B. 
+ 
i
C. 
+ 
i
D. 
+ 
i
Mathematics
A geometric sequence is given. Find the common ratio and write out the first four terms.
A. an = 2 
n-1
r = 
; 2, 
, 
, 
, ...
B. an = 2 
n-1
r = 
; 2, 1, 
, 
, ...
C. an = 
(2)n-1
r = 
; 2, 4, 8, 16, ...
D. an = 2 ? (2)n-1
r = 2; 2, 4, 8, 16, ...
Mathematics