Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.cot 900°
A. -1
B. 
C. 0
D. undefined
Answer: D
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Solve the initial value problem.
= 
- 
, y(0) = -1
A. y = 2 tan-1 x - 1 B. y = 2 cot-1 x - 3 sin-1 x C. y = 2 tan-1 x - 3 sin-1 x - 1 D. y = 2 tan-1 x - 3 sin-1 x + 1
Solve the problem.The following map shows several states in the northeastern United States. Is it possible to find a route that passes over each common state border exactly one time?
A. Yes B. No
Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.-2
+ 2i
A. 4(cos 45° + i sin 45°) B. 4(cos(-135°) + i sin(-135°)) C. 4(cos(-45°) + i sin(-45°)) D. 4(cos 135° + i sin 135°)
Determine how many of the first 5 statements in the sequence obtainable from the given statement are true.The sum of the first n numbers is 
.
A. 5 B. 3 C. 4 D. 2