"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...
When a covalent bond breaks, under the influence of incoming electrophile or nucleophile, it happens in two ways 1.Heterolytic fission 2.Homolytic fission Homolytic fission : when a covalent bond...
Solution 1: Apply cos c = (17^2 + 4^2 - 15^2)/2*17*4 = 10/17 in ADC. In ABC, cos C = ( 17^2 + (4+x)^2 - 17^2) / 2*17*(4+x) Find x. Find the angle cos C, then take BD as x. Then cos C will be same for...
Complex Number Algebra of complex numbers, addition, multiplication, conjugation. Polar representation, properties of modulus and principal argument. Triangle inequality, cube roots of...