Find the values of x for which the geometric series converges.
A. |x| < 5
B. |x| < 1
C. |x| < 
D. |x| < 10
Answer: C
Mathematics
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Find an equation of the line tangent to the given curve at the point (a, f(a)). f(x) = 7e4x , a = 0
A. y = -28x + 7 B. y = 7x + 7 C. y = 28x + 7 D. y = 4x + 7
Mathematics
Write the number 3.9 in the form a + bi.
A. 3.9 + 0i B. 3.9i - 0 C. 3.9 D. 3.9i
Mathematics
Evaluate.2 + 15 + 14
A. 27 B. 1 C. -27 D. 31
Mathematics
Without solving, determine the character of the solutions of the equation in the complex number system.x2 - 2x - 4 = 0
A. two unequal real solutions B. two complex solutions that are conjugates of each other C. a repeated real solution
Mathematics