6.2 answers

6.2 excerise 

Tell me the concept 

Find the centroid of the triangle formed by the points (3,-5,7),(-1,7,-6),(1,1,2)

I have a doubt

Personal Exp. Entry in tally

If 3 sin theta 5 cos theta equals to 5 prove that 5 sin theta minus 3 cos theta equals to 3

Another way to learn this problem 

for a random sampling of 64 light bulbs, determine the probability that the mean time to failure will exceed 820 hours, correct to two sinificant figures.

Ch 13 ex 9.3

How to use this formula in comparision

Tree method

Circles example 3 xth std

Point(0,_7 )lies

Two cubes each of volume 64 centimetre join 8285 the surface area of resulting cuboid

Sir zero polynomial, liniar, cubic ,quadratic, Biquadratic polnoliam ka maximum kitna factor ho saktha ha

Why did you assume them 2x ?

1/(9x^2+6x+10) dx

A student sitting at the back bench in a class has difficulty in reading .What could be his defect of vision? Draw ray diagram to illustrate the image formation of the blackboard when he is seated at the back and front seat State two possible causes of this defect explain the method of correction this defect with the help of ray diagram