Question

The normal to curve y = 7x2-x4 at x=2 passes through

a) (30,4)
b) (20,4)
c) (10,5)
d) (5,20)

(give full solution)​

Answer 1

Question : The normal to curve y = 7x2-x4 at x=2 passes through

a) (30,4)

b) (20,4)

c) (10,5)

d) (5,20)

Solution : Put vale of x in y= 7x2- x4 then find value of y from equation using x = 2

Final Ans : (b) or ( 5,20)