Question

Find the value of a growniche le faleving equation has egun Find the values of k for which the following equation has equal roots : (k-12) x2 + 2 (k-12) x + 2 = 0

JEE/Engineering Exams

Maths

Solution

4.0 (1 ratings)

(K-2)n +ack-12n+2=0 equation has ean roots iff 6.49c=0 2Ck_23 _ 4 (K-2) X2=0 (K-2) ( 4(K-2) – 8] -0 K=2 or 4K-8-800 - Ak=16 K-4 for k=a or 4 the equation has real root