Tutor profile: Bella K.
What is the hardest part about learning Arabic?
Cleaning the inner side of your palm if you are right-handed as you write the opposite direction.
How many trigonometrical functions exist?
There is only 1 which is sine, everything else exists only as a simplification, e.g. cos (a) = sin ((Pi/2) - a).
Find x: -10x - 19 = 19 - 8x
x = -19