A. {x: 2nπ-π/2 < x< 2nπ+ π/2, n ? Z}
B. {x: 2nπ< x
C. {x: x? (-∞, ∞)}
D. none
If f={(a, 1), (b, -2), (c, 3)}, g={(a, -2), (b, 0), (c, 1)} then f2+g2=
A={-1, 0, 1, 2}, B= {2, 3, 6,}If f from A into B defined by f(x)=x2+2, then f is
If f(x)=x3-x, g(x)=sin 2x, then
If f(x)= (a-xn)1/n, where a>0 and n?N, then (fof)(x)=
If f(x)=αx+β and f={(1, 1), (2,3), (3,5), (4, 7)} then the values of α, β are
If y=x2+2x+1/x2+2x+7, then inverse function x is defined only when
if f: [0, ∞)→R defined by f(x)=x2, then f is
If f:[0, ∞)→[0, ∞) defined by f(x)=x2, then f is
The domain of Sin-1 log2 (x2/2) is
The domain of √3+x + √3-x/x is