The integral value of k for which the equation (k−12)x2+2(k−12)x+2=0 possesses no real solutions is ______.
13
We have (k−12)x2+2(k−12)x+2=0
For no real solution, D < 0 i.e b2−4ac<0
⇒[2(k−12)]2−4(k−12)×2<0
⇒2(k−12)[2(k−12)−4]<0
⇒(k−12)[2k−24−4]<0
⇒(k−12)(2k−28)<0
⇒12<k<14⇒k=13