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|Hari Govind S|
1.Let ABC be a triangle. Let B' and C' denote respectively the reflection of B and C in the internal angle bisector of angle A. Show that the triangles ABC and AB'C' have the same incentre.
2.Let P(x)=x*x+ax+b be a quadratic polynomial with real coefficients. suppose there are real numbers s is not equal to t such that P(s)=t and P(t)=s.
Prove that b-st is a root of the equation x*x+ax+b-st=0
3.Find all integers a,b,c such that a*a=bc+1,b*b=ca+1
Suppose an object (of 10 kg) under trajectory is projected at an angle 60 degree reaches a height of 10 metre is undergoing an increase in value of g which is in G.P. ( i.e., g, g2, g3,… at every second).
1) Time of flight,
2) Fore exerted on the object during projection,
3) Horizontal range and
4)The value of g, the instant when it hit the ground.
Please explain the answer in detailed algorithm....
my question is its written in book that when we heat the crystle than an electron is free to move and it conduct electricity
mean when thermal enegy is provide to any crytal it conduct electricity
soo hot body conduct electricity very easyly the book say that the elctron may break away from a covalent bond and become free conductive electron
sun is too hot why it cannt conduct electricity