2/3+6/7
= (88*10^73 - 7)/9
the chain rule
2/1×3+2/3×5+2/5×7+………………….2/15×17
= (43*10^36 - 7)/9
2x²+7x-4
3/8x-1/3x=2
= (34*10^17 - 7)/9
A right angled triangle with a 30 degree angle and angle X.
Calculate the size of angle x.
= (82*10^92 - 1)/9