loserunderachiever wrote:
Bunuel wrote:
Is \(a^7*b^2*c^3 \gt 0\)?
(1) \(bc \lt 0\)
(2) \(ac \gt 0\)
Hi
Bunuel If a^7 = that can indicate A can be (+\-) going ahead , * B2 = this means B will be every time positive, C^3 , C may be +\- values
coming back to the main equation , if we multiply Negative * positive * Negative = this gives us a positive value . Is my mistake only that I haven't considered Zero in my values ? As by even / odd concept , I had marked this D .
x^odd can be positive, negative or 0.
x^even can only be positive, or 0.
Not sure I understand what's your question though.
I got your point , as I didn't consider X to be Zero .
" Can't stop learning and failing"