X ? 3 ( 22 - ( X / 2 ) ) = 18
acos^2theta+bcos^2theta=c,find tan^2theta=c-a/b-c
a^2 - b^2 + 2abi + b^2 -2(2abi) = 18i
for example you're asked to find the distance between the two ships on the adjacent side. The first ship has an angle of elevation...
10xy to the power of 2 divided by 5xy
[2-x]-[x-4]=[x-6]
how many numbers must be selected from the set {1,3,5,7,9,11,13,15} to guarantee that at least one pair of these number add up to ...
find q(x) when p(x)=2x-7 and qp(x)=8x^2-56x+98
