If: is defined by f (x) = x - [x], where[x] is the greatest integer not exceeding x, then the set of discontinuous of f is
the empty set
R
Z
N
Let f(x) = ex, g(x) = sin - 1x and h(x) = f(g(x)), then
B.
We have,
If y = acos(log (x)) + bsin (log(x)), where a, b are parameters, then xy" + xy' is equal to
y
- y
2y
- 2y