The positive root of x2 - 78.8 = 0 after first approximation by Newton Raphson method assuming initial approximation to the root is 14, is
9.821
9.814
9.715
9.915
The maximum area of the rectangle that can be inscribed in a circle of radius r, is
r2
2r2
D.
2r2
It can be easily checked that < 0 for this value of x.
A is maximum for x = and the maximum value of A is given by
The order of the differential equation whose solution is y = a cos(x) + b sin(x) + ce-x , is
3
1
2
4
The differential equation of all parabolas with axis parallel to the axis of y is
y2 = 2y1 + x
y3 = 2y1
= y1
None of these