1.

If sin α and cos α are the roots of the equations ax2 + bx + c = 0, then b2 =(a) a2 − 2ac(b) a2 + 2ac(c) a2 − ac(d) a2 + ac

Answer» If sin α and cos α are the roots of the equations ax2 + bx + c = 0, then b2 =



(a) a2 − 2ac

(b) a2 + 2ac

(c) a2 − ac

(d) a2 + ac


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