1) To find the sum of the sequence 2, 4, 8, ..., 1,024, using the Multiply, Shift, and Subtract technique, which of the following would we need to know? (Check all that apply.)

A) common ratio

B)number of terms

C)first term

D) last term

2)Which of the following must be true about the common ratio of an increasing geometric sequence? (Check all that apply.)

A)It must be greater than 0.

B) It must be greater than 1.

C) It must be an integer.

D) It must not be a fraction.