Simplify the expression. The result will be one of sin x, cos x, tan x, cot x, sec x, csc x.
A. cos x
B. sin x
C. tan x
D. cot x
Answer: B
Mathematics
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Solve.Find an equation of an ellipse with vertices (-3,0) and (3, 0) and eccentricity equal to 
.
What will be an ideal response?
Mathematics
Find the product.(8a + 11c)(8a - 11c)
A. 64a2 - 176ac - 121c2 B. 64a2 + 176ac - 121c2 C. 8a2 - 11c2 D. 64a2 - 121c2
Mathematics
Solve.You park your car in a pay lot. Because you have a coupon, you get the first 
You pay for an extra 2
hr. How long can you park?
A. 7 hr 15 min B. 6 hr 15 min C. 7 hr D. 6 hr 75 min
Mathematics
Use mathematical induction to prove that the statement is true for every positive integer n.4 + 8 + 12 + ... + 4n = 2n(n + 1)
What will be an ideal response?
Mathematics