Ch video class10th ch stastics

Ch video class10th ch stastics

why we have pass bank entries in contra in double entry system

Ref.12 th maths CBSE chap.8 misc.ex. question no.10. The question is to find the area enclosed by parabola,x^2=y , the line y=x+2 and X AXIS.

But in the answer the area enclosed between the parabola and the st.line was found out. Is it correct?

Two cyclist A and B starts from the junction of two roads inclined at 90°,the ratio of their velocities being 3:4. Find the ratio of the rate at which two cyclists are separating with the velocity of A.

determine the interval in which the function are strictly decreasing or strictly decreasing : f(x) = x×x×x×x×x×x×x×x 6×x×x

If ABC is an obtuse angled triangle, obtuse angled at B and if AD ^ CB Prove that AC2
=AB2
+ BC2
+2 BC x BD

plz send water tank problem 

If a straight line is drawn parallel to one side of a triangle intersecting the other two sides, then it divides
the two sides in the same ratio.

If a straight line is drawn parallel to one side of a triangle intersecting the othertwo sides, then it divides
the two sides in the same ratio.

The areas of two similar triangles are 121 cm2
and 64 cm2 respectively. If the median of the first triangle
is 12.1cm, find the corresponding median of the other.

Explain how 2√2×√2=8