Plz can someone tell mei have attached my question
Waseem khan , 7 Years ago
Grade 11
Analytical Geometry> Plz can someone tell me i have attached m...
2 Answers
Chirag Vaswani
Last Activity: 7 Years ago
The discriminant is zero beacause:
we are having a quadratic equation in x, and we say that the line is a tangent to the curve, so to satisfy the condition of being a tangent the line must meet the curve only at one point, so there can be only one solution for x, hence dicriminant must be zero
Punit
Last Activity: 7 Years ago
Here the line must be a tangent,so to satisfy the condition the should have only one solution and therefore the discriminant must be 0.
Provide a better Answer & Earn Cool Goodies
Enter text here...
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Ask a Doubt
Get your questions answered by the expert for free
Enter text here...
Other Related Questions on Analytical Geometry
\tThe locus of the point represented by x= t^2 +t+1 and y=t^-t+1 is
Analytical Geometry
0 Answer Available
Last Activity: 2 Year ago(s)
show that the centroids of the triangles of which three perpendiculars lie along the lines y=m1x,y=m2x,y=m3x lie on y(3+m2m3+m3m2+m1m2)=x(m1+m2+m3+3m1m2m3)
Analytical Geometry
0 Answer Available
Last Activity: 2 Year ago(s)
show that the equation (ab-h²)(ax²+2hxy+by²+2gx+2fy)+af²+bg²-2fgh=0 represent a pair of straight lines and that these straight lines form a rhombus with the lines ax²+2hxy+by²=0
Analytical Geometry
0 Answer Available
Last Activity: 2 Year ago(s)
A circle has its center on straight line 5x-2y+1=0 and cuts the x axis at two points whose absciasse are -5,3 find equation of the circle and it's radius.
Analytical Geometry
0 Answer Available
Last Activity: 2 Year ago(s)
Prove that ax^2+by^2+cz^2 +2ux+2vy+2wz+d=0 represent a cone if u^2/a+v^/b+w^2/c=d
Analytical Geometry
0 Answer Available
Last Activity: 2 Year ago(s)