((3/2) ^ 3 * (2/5) ^ 4)/(9/4 * (2/5) ^ 3)
is s1(X-K) (biggest singular value) where K is of rank k >= sk(X)
100÷2,800
2((√3+√2)/(6√2))−1+3((√2+√3)/(4√3))−1
state the range of f(x)=-3x^2 for x <-1
7+7
12x+6
[ \lim_{x \to +\infty} (x + 2x){\frac{1}{x}} ]
𝑓(𝑥) = 10𝑥/𝑙𝑛(𝑥−21)−1
[3(2 $\sqrt{\}$5 + 3 $\sqrt{\}$ 2)]/20-18