If  f(x)=1og(cos x),  then  domain f.=

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