Express in terms of i.
A. 5i
B. -5i
C. ±5
D. -i
Answer: A
Mathematics
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Use trigonometric identities to solve each equation in the interval [0, 2?] tan2 x = - 
sec x
A. 
B. 
C. 
D. 
Mathematics
Find the component form of the indicated vector.Let u = 
. Find -7u.
A. 
B. 
C. 
D. 
Mathematics
Graph the function.y = |cot 
| 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.The probability distribution for the random variable X is: 
What is the expected value of X?
A. 0.62 B. 0.26 C. 0.22 D. 0.50
Mathematics