Question

ABCD is a parallelogram. The circle through A,B and C intersect CD (produced if necessary) at E. prove that AE=AD. 

if cosa-sina=√2sina prove that cosa+sina=√2cosa

Last step of sum explain in detail

find the area of quradnate of a circle whose circumference is 44 cm

What is basics of debtor? 

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......

If sin ( cot inverse (x+1) )= cos ( tan inverse x)  then find x 

Two parallel sides DC and AB  of a trapezium are 12cm and 36cm respectively. If non parallel sides are each equal to 15cm, find the area of the trapezium

^integrate x² -1 dx

Maxima minima

In a quadrilateral ABCD, AB ll CD and AD=BC. Prove that Angle A= angle B

 GST ANE KE BAAD SCHEDULE 3 ME JO CHANGES HUYE HAI UNKI DETAIL DO OLZ

3d

 

Basics of debtor method

Find value of x y z if 1,x,y,z,16 are in gp

For class 10,ex - 10.2, qn no-12

• 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

Divide a number 15 in two parts such that the square of one multiplied by the cube of other is maximum.

What are reflexive pronouns?