Question

If two curves y=x^2-1,y=ax^2-4x+1 at (1,0) touch each other then a=

Answer 1

Answer:

a = 3.

Step-by-step explanation:

x =1 ; y = 0.

x^2 = 1 ; ( 1st eqn.)

x = 1.

a - 4 + 1 = 0; ( 2nd eqn.)

a = 3.