Question

A hollow cone is cut by a parallel to the base and upper portion is removed.if the curved surface of the reminder is 8 of the curved 
                                               9
Surface of the whole cone,find the ratio of the line segments into which the cone's altitude is divided by the plane

Sir  my doubt is from 1.1 exercise from question no.*2   *3...and questionno.*5....

while checking a relation is reflexive symmetric transitive why we are everytime proving it not reflexive  not symmetric not transitive . I have a doubt why we are always proving that it is not equivalence why we are not proving it as equivalence.
Sir I've seen in many questions like ... whenever such type of questions come like .. show that or check whether the relation is reflexive..symmetric.or transitive....
We are always proving that question is neither reflexive nor transitive or symmetric......

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• You multiplied √48x(14+x)
• Instead we can keep it exactly like that and when it comes down the equation would be like this
• √48x(14+x)=56+4x
• We can take 4 as common from RHS 
• So 14+x cancels out!

Like sir did,  the calculation seemed to be great deal of loss of time. 

I think this would be a bit more easy. 

Tnku

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