Add. Find the LCD first.
+ 
+ 
A. 
B. 
C. 
D. 
Answer: A
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Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a degree.3 cos2 x + 2 cos x = 1
A. {51.8°, 128.2°} B. {49.8°, 130.2°, 229.8°, 310.2°} C. {70.5°, 180°, 289.5°} D. {103.2°, 145.2°, 283.2°, 325.2°}
Decide whether the given number is a solution to the equation preceding it.
+ 
= 1; 4
A. No B. Yes
Use identities to find the exact value of the indicated trigonometric function of the acute angle ?.sin ? = 
, cos ? = 
Find sec ?.
A. 
B. 
C. 
D. 
Solve the problem. If necessary, round to the nearest tenth.Find all ordered pairs on the y-axis of a Cartesian coordinate system that are 10 units from the point (6, 0)
A. (0, -64), (0, 64) B. (0, 8) C. (64, 0) D. (0, -8), (0, 8)