Question

ugh help -_- im mad i cant get this i almost got it.. just need some guidence?!?! 1+1=2+3=5+3=8+5=13 so i was ganna times 13 *8 but its 104? no choice so then i thought maybe its add on to every one like a^4=5 A^3=4 but then thats 5*4 which is 20 and theres no choice!

Answer 1

maybe im doing it completly wrong?

Answer 2

\[\large a_3=3\times a_1 = 3\times1=3\]\[\large a_4=4\times a_2=4\times3=12\]\[\large a_3\times a_4 = 3\times12=36\]

Answer 3

tjanks your a life saver!

Answer 4

:D np