Answer: 4
Step-by-step explanation:
Recall the Maclaurin expansion for cos(x), valid for all real x :

Then replacing x with √5 x (I'm assuming you mean √5 times x, and not √(5x)) gives

The first 3 terms of the series are

and the general n-th term is as shown in the series.
In case you did mean cos(√(5x)), we would instead end up with

which amounts to replacing the x with √x in the expansion of cos(√5 x) :

See below for pics of the answers
Answer:
27.183m. squared
Step-by-step explanation:
Find the base, then find the volume
Base:
(2.6*4.1*0.5)=
(10.66*0.5)=
5.33
Volume:
(5.33*5.1)=
27.183
Hope that this helped!
The probability is very high because you need less dimes to make a full dollar other than a nickel you need more