The function f(x) = sin(x) + cos(x) will be
an even function
an odd function
a constant function
None of these
If , then x is equal to
4
5
1
3
D.
3
In a ABC, if cot(A) cot(B) cot(C) > 0, then the triangle is
acute angled
right angled
obtuse angled
does not exist