" 27."(1^(3)+2^(3)+3^(3)+4^(3)+...12^(3))/(1^(2)+2^(2)+3^(2)+4^(2)+...12^(2))=

1.2^(2)+2.3^(2)+3.4^(2)+

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

(1.2)/(1!)+(2.3)/(2!)+(3.4)/(3!)+....=

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

1-(3)/(16)+(1.4)/(1.2)((3)/(16))^2- (1.4.7)/(1.2.3)((3)/(16))^3 + …..=

(1) / (1.2) + (1.3) / (1.2.3.4) + (1.3.5) / (1.2.3.4.5.6) + .... oo

If A={1,2,3} and B={2,3,4} , find which of the following are the functions from A to B? (i) f={(1,2),(2,3),(3,4)} (ii) g={(1,2),(1,3),(2,3),(3,4)} (iii) h={(1,3),(2,4)}