Express the number in terms of i.
A. 
B. -19i
C. 
i
D. -
i
Answer: C
Mathematics
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Find the product using FOIL.(x + 8y)(x - 12y)
A. x2 - 4xy - 4y2 B. x2 - 7xy - 96y2 C. x - 4xy - 96y D. x2 - 4xy - 96y2
Mathematics
Solve the problem.
Find the exact value of cos 2?.
A. - 
B. 
C. 
D. 
Mathematics
Solve the problem.One maid can clean the house in 7 hr. Another maid can do the job in 8 hr. How long will it take them to do the job working together?
A. 3
hr
B. 
hr
C. 56 hr
D. 
hr
Mathematics
Decide whether the given sequence is finite or infinite.a1= 3, a2= 8; for 3 ? n ? 10, an= 4?an-1+ 7?an-2
A. Finite B. Infinite
Mathematics