Start today! Open your book and just look into it for sometime and you'll realise how much you have to cope up. Interest will automatically develop. Procrastination only makes things worse.
If the roots of the equation a(b-c) x^2+b(c-a)x+c(a-b)=0 are equal then prove that 1/a + 1/c = 2 /b Solution : Since roots of the equation are equal, value of discrinant is zero. Which give...
A prime number is the positive integer. (Besides ) which is divisible by 1 and itself. Examples: 2, 3, 5, 7, 11, 13, 17, 23, 29 etc. A number which is not prime is called a composite...