book
Maths Puzzle
Numerical Ability
How many 8-digits whole numbers can be written with eight different digits, assuming that the leading digit cannot be zero?
Read Solution (Total 0)
book Other Question
why is something raise to the power zero equal to one.
for example
3^0=1
prove it .
can you please help me with this problem {3a+b+c=7
{ a+3b-c=13
{ b=2a-1