Get here CBSE Maths important questions of Class 10 of Chapter 5: Arithmetic Progressions for Board exam preparation and practice, Download PDF for free.

This is a preview. Log in through your library . Abstract Some newly-discovered arithmetic progressions of primes are presented, including five length twenty-one and one of length twenty-two. Journal ...

For ax 2 + bx + c = 0, (α, β) = [–b ± √(b 2 – 4ac)]/2ac, where α and β are the roots of the equation. Sum of roots = –b/a Product of roots = c/a If roots of a quadratic equation are given, then the ...

This is a preview. Log in through your library . Abstract In 1979 A. F. Lavrik obtained some estimates for exponential sums over primes in arithmetic progressions by an analytic method. In the present ...