Posted by HotMath on .
Multiple Choice (theta) means the symbol 0 with the dash in it.
1.)Which expression is equivalent to tan(theta)(sec(theta))/(sin(theta))?
A.)cot(theta)
B.)cot(theta)
C.)tan(theta)cot(theta)
D.)tan(theta)sec^2(theta)
2.)Find the exact value of:cos 375 degrees
A.)(sq root 6 sq root 2)/4
B.)(sq root 6 + sq root 2)/4
C.)(sq root 2  sq root 6)/4
D.)(sq root 2  sq root 6)/4
3.)Which expression is equivalent to: cos ((theta)+pie/2).
A.)cos (theta)
B.)cos(theta)
C.)sin(theta)
D.)sin(theta)
4.)Find the exact value of sin 2(theta) if cos(theta)=( sq root5)/2 and 180 degrees<(theta)<270 degrees.
A.)1/9
B.)(4 sq root 5)/9
C.)1/9
D.)(4 Sq root 5)/9
5.)Find the exact value of sin (theta)/2 if cos(theta)=2/3 and 270 degrees<(theta)<360 degrees.
A.)1/3
B.)1/3
C.)sq root 6/6
D.)( sq root 6)/6
6.)Find the exact value of cos105 degrees by using a halfangle formula.
A.)(sq root2sq root 3)/2
B.)(sq root 2 sq root 3)/2
C.)(sq root 2+ sq root 3)/2
D.)(sq root 2+ sq root 3)/2
7.)Find the solution of sin2 (theta)=cos (theta) if (theta degrees)<=(theta)<180 degrees.
A.)30 degrees and 90 degrees
B.) 30 degrees and 150 degrees
C.)30 degrees, 90 degrees, 150 degrees
D.)0 degrees, 90 degrees, and 150 degrees
8.)An insect population P in a certain area fluctuates with the seasons. it is estimated that P=17,000+4500sin(pie t)/52, where t is given in weeks. Determine the number of weeks it would take for the population to initially reach 20,000.
A.)12 weeks
B.)692 weeks
C.)38 weeks
D.)42 weeks

Algebra II 
bobpursley,
looks like a test to me...

Algebra II 
Hotmath,
1.)A
2.)B
3.)D
4.)D
5.)C
6.)B
7.)C
8.)A