Tangent and Normal

IMPORTANT

Tangent and Normal: Overview

This topic covers concepts such as Tangents and Normals, Geometrical Meaning of Derivative of a Function, Tangent to a Curve, Slopes of Tangent at a Point on a Curve y=f(x), Equations of Tangent at a Point on a Curve y=f(x), etc.

Important Questions on Tangent and Normal

MEDIUM
IMPORTANT

The equation of a tangent to the curve y= 3x2 which is parallel to the line 4x2y+5=0 would be

HARD
IMPORTANT

If a line px+qy=12 is a tangent to the ellipse 4x2+9y2=16, then pq can not be equal to :

MEDIUM
IMPORTANT

The number of parallel tangents of fx=x2x+1 and gx=x3x2-2x+1 is

EASY
IMPORTANT

The tangent to a given curve is perpendicular to x-axis if

HARD
IMPORTANT

The tangent to the curve 3xy2-2x2y=1 at (1,1) meets the curve again at the point

EASY
IMPORTANT

Find the slope of tangent to the curve y=2x2+3sinx at x=0.

MEDIUM
IMPORTANT

The equation of the tangent to the curve f (x)=1-ex2 at the point of intersection with the y-axis, is

MEDIUM
IMPORTANT

The points on the curve x24+y225=1 at which the tangent is parallel to x-axis are 

EASY
IMPORTANT

Find the slope of the tangent to the curve y=x3-x at x=2.

MEDIUM
IMPORTANT

Equations of tangents to the ellipse 2x2+3y2=11 at the points whose ordinates is 1

HARD
IMPORTANT

The equation of the normal to the curve 2x2-y2=14 which are parallel to the line x+3y=8 is

MEDIUM
IMPORTANT

Find the equation of the tangent to the curve

x=aθ+sinθ, y=a1+cosθ at θ=π2

MEDIUM
IMPORTANT

Find the equation of tangent and normal to the curve at the indicated point on it.

2x2+3y2-5=0 at 1,1

HARD
IMPORTANT

Find the equations of tangent and normal to the curves at the indicated point on it.

y=x2+4x+1 at -1,-2

MEDIUM
IMPORTANT

The equation of tangent of a curve y=x2-2x+3 which is parallel to the line 2x-y+9=0 is 

EASY
IMPORTANT

If the line 6x-y-4=0 touches the curve y2=ax3+b at the point 1,2, then a+b=

HARD
IMPORTANT

Let f: be a bijection. A curve represented by y=fx is such that f'(x)>0x. The tangent and normal drawn at P(α,1) on the curve cuts the X -axis at A,B respectively and C is the foot of the perpendicular from P onto the X -axis. If P(α,1) is such a point that AC+CB is minimum, then the tangent at P is parallel to the line

MEDIUM
IMPORTANT

The equation of the normal to the curve x=acosht, y=bsinht at any point t is

MEDIUM
IMPORTANT

The curve y=ax3+bx2+cx+5 touches the x-axis at P-2,0 and cuts y-axis at a point Q, where gradient is 3. Then the values of a, b, c are

MEDIUM
IMPORTANT

If the tangent to the curve x23+y23=a23 meets the x-axis at A and y-axis at B, then AB=