Q: math: ¬(p & q) is equivalent to [...]
A: (¬p) v (¬q)
Q: __ __
Q: math: \/a + \/b = [...] (for: a,b >= 0)
A: _________________
A: / ___
A: \ / a + b + 2*\/a*b
A: \/
Q: math: e = [...] (the base of natural logarithms)
A: 1÷0! + 1÷1! + 1÷2! + ... + 1÷n!
A: lim (1 + 1÷n)^n
A: n—>oo
Q: math: f(g(x))' = [...]
A: f'(g(x)) * g'(x)
Q: geom: cos A + cos B = 2*[...]*(cos (A - B)÷2)
A: cos (A + B)÷2
