" 20."2(3)/(4)-:2(2)/(3)+1(1)/(12)=?

y '= (- 2-20 (3) / (2) -36 (1) / (4) (1) / (2) -1) 2203632211.12

If ((3(1)/(4) )^(4) -(4( 1)/(3))^(4))/( (3,(1)/(4) )^(2) -(4,(1)/(3))^(2) )= ((13a)/(12))^(2) , find a.

|(4,3),(-1,2)|=

Assertion (A) : The value of (2)/(1!) +6/(2!)+(12)/(3!) +(20)/(4!) + .......o = 3e Reason (R) : The n^(th) term of the series 2,6,12,20 , ....... Is n (n+1)

Let A = {1,2,3,4} and R be a relation in A given by R = {(1,1) (2,2) (3,3) (4,4) (1,2) (2,1) (3,1) (1,3)} . Then R is

12-[4+2+{3+(1)/(2)(1-(1)/(3))}]=

The sum of (2)/(1!)+(6)/(2!)+(12)/(3!)+(20)/(4!)+.... is