The length anomal to the curve le non co ojat = 112 15

The length of the normal to the curve y=c cos ((hx)/c) at any point is

The length of the normal to the curve y=a cos h (x/a) at any point varies as

The equation of tangents to the curve y=cos(x+y), -2pi le x le 2pi that are parallel to the line x+2y=0 , is

The equation of tangents to the curve y=cos(x+y), -2pi le x le 2pi that are parallel to the line x+2y=0 , is

The number of points in interval [ - (pi)/(2) , (pi)/(2)], where the graphs of the curves y = cos x and y= sin 3x , -(pi)/(2) le x le (pi)/(2) intersects is

The number of points in interval [ - (pi)/(2) , (pi)/(2)], where the graphs of the curves y = cos x and y= sin 3x , -(pi)/(2) le x le (pi)/(2) intersects is

The area of the region by the curve y=3 cos x, 0 le x le (pi)/(2) is ..Sq. Units.

Determine the area enclosed between the curve y= cos 2x, 0 le x le (pi)/(4) and the co-ordinate axes.

Find all the tangents to the curve y=cos (x+y),-2 pi le x le 2 pi that are parallel to the line x+2y=0 .