# Roots of a Quadratic Equation : If sin x and cos x are the roots of the equation...

Not what you're looking for? Search our solutions OR ask your own Custom question.

If sinx and cosx are the roots of the equation

ax^2 + bx + c = 0 then prove that a^2 - b^2 + 2ac = 0.

Â© BrainMass Inc. brainmass.com March 4, 2021, 6:25 pm ad1c9bdddfhttps://brainmass.com/math/basic-algebra/roots-quadratic-equation-sinx-cosx-43882

#### Solution Summary

A proof involving trigonometric roots of a quadratic equation is provided. The solution is detailed and well presented.

$2.49