Question

Evaluate the limit
lim as a approaches 49 (49-a)/7-radical(a)

Answer 1

multiple both numerator and denominator by \(7+\sqrt a\)

Answer 2

consider \(49-a=(7+\sqrt{a})(7-\sqrt{a})\)

Answer 3

that makes sense @oldrin.bataku , so then would i just cancel out the 7- radical(a)

Answer 4

yes, he is smarter than me. hehehe... his way is good

Answer 5

well your smart too @Loser66

Answer 6

same thing! you can go either way

Answer 7

nevermind i got it thnx @oldrin.bataku

Answer 8

yeah i know just commenting on what @Loser66 said