Find the sum of the infinite geometric series, if it exists.
A. 
B. does not exist
C. 
D. 
Answer: D
Mathematics
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Evaluate the trigonometric function of the given quadrantal angle. If the value is undefined, write "undefined."cos 180°
A. 0 B. 1 C. -1 D. undefined
Mathematics
Find the following. Assume that letters can represent any real number.-
A. Not a real number B. -3 C. -2 D. -9
Mathematics
Simplify the expression.
A. undefined B. 79 C. 1 D. 0
Mathematics
Solve.1.4x - 3.3 = 0.8x - 1.8
A. x = 2.6 B. x = 2.75 C. x = -0.4 D. x = 2.5
Mathematics