Solve the problem.For what value of r does the infinite series 1 + 3r + 5r2 + 3r3 + r4 + 3r5 + 5r6 + 3r7 + r8 + ... converge?
A. |r| < 1
B. |r| < 
C. |r| < 4
D. |r| < 
Answer: A
Mathematics
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Find the sum, if it exists.0.02 + 0.002 + 0.0002 + 0.00002 + . . .
A. 
B. 0
C. 
D. Does not exist
Mathematics
Solve the problem.If 
is a convergent series of nonnegative terms, what can be said about 
?
A. Always converges B. May converge or diverge C. Always diverges
Mathematics
Find the sum.
A. -70 B. -80 C. -15 D. -46
Mathematics
Find the exact value of y, or state that y is undefined.y = csc-1(-1)
A. ?
B. - 
C. 
D. 2?
Mathematics