The function f(x) = sin(x) + cos(x) will be
an even function
an odd function
a constant function
None of these
If y = sin2(x)cos2(x), then yn is equal to
None of the above
C.
In a ABC, if cot(A) cot(B) cot(C) > 0, then the triangle is
acute angled
right angled
obtuse angled
does not exist