The quadratic equation in x is x2 + 2x.cos(A) + K=0. &also given summation and difference of solutions of above equation are -1 & -3 respectively. Hence find K & A?
1 Answer
May 5, 2018
Explanation:
Let the solutions of the quadratic equation be
We also know that
Simplify and solve,
Substitute
Using the difference and sum of roots,
When
When the roots are
By comparison,