Question

is (a) x+3<0, (b) x , (c) x+3=0 is an equation?​

Answer 1

Answer:

all the roots real

one real and two imaginary roots

three real roots namely x = a, x = b, x = c

none of these

Answer :

B

Solution :

Let

. Then,

<br> Clearly,

for all x. So, f'(x) = 0 has no real roots Consequently, f(x) cannot have two distinct real roots. <br> Hence, f(x) = 0 has two imaginary and one real root.