Complex Number Algebra of complex numbers, addition, multiplication, conjugation. Polar representation, properties of modulus and principal argument. Triangle inequality, cube roots of...
Organic chemistry is a branch of chemistry which deals with the study of cabron and its comopounds. For those who are preparing for IIT-JEE MAINS & Advanced and NEET aspirants it's one of the best...
"Like if I have 5 tshirts and i want to gift them to my 5 cousins named A,B,C,D,E, so find number of ways in which particular cousin won't get their particular tshirts." So number of ways: D(n)=n!*(1-1/1!+1/2!-1/3!+.....(-1)^n*1/n!)) Where...