Can somebody explain what i have to do to find the value of x? (in the pic)

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241. a) 0 b) 1 c) 2 d) 1 2

If rt is greater than ba, which statement must be true ?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g