Which of the following is closest in value to (9^13)-(9^2)?
Select.
A) 9^9	B) 9^8	C) 9^13	D) 9^6	E) 9^5
9^13 is much larger number than 9^2 and as we need approximate value then it's pretty much negligible in this case, so: (9^13)-(9^2) = ~9^9.   Answer: C.   Similar questions to practice:   Hope it helps.
<result>C</result>
Which of the following is closest in value to (9^13)-(9^2)?