Which of the following is closest in value to (9^10)-(9^2)?  Choose the correct choice from the following answers
A) 9^10
B) 9^8
C) 9^7
D) 9^6
E) 9^5
9^10 is much larger number than 9^2 and as we need approximate value then it's pretty much negligible in this case, so: (9^10)-(9^2) = ~9^10.   Answer: A.   Similar questions to practice:   Hope it helps.
<result>A</result>
Which of the following is closest in value to (9^10)-(9^2)?