Simplify.i14
A. -i
B. -1
C. 1
D. i
Answer: B
Mathematics
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Solve the equation for x.y = 3 tan 2x - 1
A. x = 
arctan (3y + 3)
B. x = 2 arctan 
C. x = 2 arctan (3y + 3)
D. x = 
arctan 
Mathematics
Subtract.
- 
A. 
B. 1
C. 10
D. 5
Mathematics
Simplify the exponential expression using the rules for exponents.
A. 
B. 
C. 
D. 
Mathematics
Find the value of the expression.-|-20|
A. 
B. 0
C. -20
D. 20
Mathematics