square root of 15
sum((k/4)^3)
Find the coefficient of x^20 in f (x) = (x^2 + x^3+x^4 +x^5 + x^6)^5.
(2090000)^6
13/15=x/88920
Apower of 4 A=[1 2 -1;0 1 -1;3 -1 1]
write the time below using a 24 hour clock 4.00am 4.00pm
((7×20)−(9×1)+6−5+(9×2))−17