The above is the simplest method. The approach behind the problem is to expand the multiplication.
Is it 7?
Yes, I am also getting 7
z = 3x, y =0
Therefore, x = all integers between -3 and 3, including both of them
Answer is 7.
Yeah, it's 7. Thanks to all of you, made a caulation mistake in my answer.
Is the answer for 5th question is 0?
Yes, it should be zero.
Yes , it is
@Shiva_1 Sir , I totally agree with you that it's repeating it's behavior but we can't say that it would not have any root by observation .( May be I am wrong but do you have any example that explains the same case)
You can draw two graphs and see that they don't meet. This is another approach which shows logical proof for my answer.
Yes, this would be, imo, an easier approach, drawing the the graphs of x^2 + 4x + 3 and -[x].
Yeah , thanks . Sir.
I did it by making graph of fractional part.