Question

Hi please help, in the below picture, how do i solve this into a single number?

Answer 1

a4 = 1
a3 = 14
a2 = 65
a1 = 112
... im so lost :-/

Answer 2

Are these determinants?

Answer 3

yess...?

Answer 4

i remember seing this once when i was doing matrixes or vectors, and you .... multiply diagonally or something...? or subtract top from bottom?

Answer 5

\[\dfrac{-(a_4a_1 - a_2a_3)}{a_3}\]

Answer 6

ur a legend, cheers @ParthKohli !

Answer 7

So the \(a_3\) would cancel out in one term, and in the other one you note that \(14 \times 8 = 112\).

No problem. :)

Answer 8

Parth you could've just beaten those numbers down into one piece. Ya know...smashing them together with those fist of yours c;

Answer 9

Wat.