Question

03. If y=1 is the common roots of ly2 +by+3= 0 and y2 + y +m=0.
then the value of 'Im' is
(1)​

Answer 1

Answer:

ly2 +by+3= 0

l(1)^2 + b(1) + 3 = 0

l + b + 3 = 0

l = -b -3

y2 + y +m=0

(1)^2 + (1) + m = 0

1 + 1 + m=0

2 + m = 0

m = -2

Now, l = -b -3 and m= -2

Then lm = (-b -3 ) X -2

= 2b + 6

Step-by-step explanation:

hope you like it!☺️☺️