What value of x makes this proportion true?

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

Iwill give brainliest only if your correct the words subsequent and submerge both contain the prefix sub. based on this information, what does the prefix sub most likely mean? a) under or secondary b) true or verifiable c) tricky or difficult d) around or centered on

Evaluate cos2θ for cosθ = square root of 3/2