How many solution of equation x^2+y^2=1?

-
Q.1.How many solution of equation x^2+y^2=1?

Popular posts from this blog

Sum and product of roots/zeroes

-
Sum and Product of roots/zeroes of a polynomial-                          Standard quadratic equation of a polynomial is ax 2 +bx+c=0, where a, b,c is constant.    Let α and β are roots of a polynomial then factors are (x- α ) (x- β) = 0                                                                                        x 2 -xβ-xα+αβ=0                                                                                        x 2 -x(α+β) +αβ=0                                                  Compare standard equation of polynomial then         α+β= - b/a = - coefficient of x/coefficient of x 2        αβ = c/a = constant term/coefficient of x 2     Q.1. The roots of the equation x²-2x+3=0 are α and β. What is the equation whose roots are α², β²? Ans. Let α and β are the roots of the equation x²-2x+3=0 then sum and product of the roots α+β= - b/a = - coefficient of x/coefficient of x²=-(-2)/1=2 αβ = c/a = constant term/coefficient of x² =3/1=3 then
Read more