Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = 
, ? < ? < 
Find sin(2?).
A. 
B. 
C. - 
D. - 
Answer: B
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Use the method of variation of parameters to solve the differential equation.y'' + y = sec x tan x
A. y = C1 cos x + C2 sin x - sin x(x + tan x) + sin x ln|csc x| B. y = C1 cos x + C2 sin x + sin x(x - tan x) + cos x ln|sec x| C. y = C1 cos x + C2 sin x + cos x(x - tan x) + sin x ln|sec x| D. y = C1 cos x + C2 sin x + cos x(x - tan x) + cos x ln|sec x|
Perform the indicated operation and express with the proper accuracy and precision. The first number given is approximate and the second number is exact. (Use calculator if needed).9.47 ÷ 4528
A. 0.00209 B. 0.0 C. 0 D. 0.00209143
Provide an appropriate response.Find the domain of the function: f(x) = 
Fill in the blank(s) with the appropriate word(s).
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.-
A. x4 B. -x9 C. -x4 D. -x3