At t = 0, the function f(t) = has
a minimum
a discontinuity
a point of inflexion
a maximum
D.
a maximum
At t = 0, first we will check continuity of the function
Now, LHL = f(0 - h)
and f(0) = 1
Since, LHL = RHL = f(0)
So, the function is continuous att = 0.
Now, we check the function is maximum or minimum
For maximum or minimum value of f(x), put
So, function f(t) is maximum at t = 0.
A line making angles 45° and 60° with the positive directions of the axes of x and y makes with the positive direction of z-axis, an angle of
60°
120°
60° or 120°
None of these