Find the exact value of the expression without using a calculator.sin 
cos 
+ cos 
sin 
A. 
B. 
C. 
D. 1
Answer: B
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Provide an appropriate response.
Just outside the harbor at Newport, there are three buoys. The distance from buoy #1 to buoy #2 is 100 yd. At an angle of 68° and a distance of 120 yd is buoy #3. What is the triangular area formed by these three buoys? 
A. 5,563 yd2 B. 11,126 yd2 C. 2,248 yd2 D. 2,782 yd2
Change the exponential expression to an equivalent expression involving a logarithm.ex = 6
A. logx e = 6 B. ln 6 = x C. ln x = 6 D. log6 x = e
Find all cube roots of the complex number. Leave answers in trigonometric form.-3
+ 3i
A. 
cis 50°, 
cis 170°, 
cis 290°
B. 
cis 70°, 
cis 190°, 
cis 310°
C. 
cis 70°, 
cis 190°, 
cis 310°
D. 
cis 50°, 
cis 170°, 
cis 270°
Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 
A. 
B. - 
C. 
D. - 
