Find the sequence of the numbers defined by
`a_(n)={{:(1/n,"when n is odd"),(-1/n,"when n is even"):}`

Find the sequence of the numbers defined by- when n is odd-,when n is even

A function f from the set of natural numbers N to the set of integers Z is defined by f(n)={((n-1)/(2),"when n is odd"),(-(n)/(2),"when n is even"):} Then f(n) is -

A function f from the set of natural number to integers defined by f(n)={{:(,(n-1)/(2),"when n is odd"),(,-(n)/(2),"when n is even"):}

A function f from the set of natural number to integers defined by f(n)={{:(,(n-1)/(2),"when n is odd"),(,-(n)/(2),"when n is even"):}

A function f from the set of natural numbers to integers defined by : f(n)={:[((n-1)/(2)",""when n is odd"),(-(n)/(2)",""when n is even"):} is :

Find the 5th and 10th terms of the sequence [u_(n)] defined by, u_(n) = {(2n+7 "when n is odd"),(n^(2) + 1 "when n is even"):}

a. Find the 21 st and 42 nd terms of the sequence defined by: t_(n)={(0,"if n is odd"),(1,"if n is even"):} (b) Find the 18 th and 25 th terms of the sequence defined by t_(n)={(n(n+2),"if n is even natural number"),((4n)/(n^(2)+1),"ifn is odd natural number"):} (c) Find the 440th and 441st terms of the sequance given by: t_(n)={(n/(n/44-1),"If n is not the square ofa natural nunber"),(2.7,"if n is the square of a natural number"):}

Find the 25th and 50th terms of the sequence whose nth terms is given by u_(n) = {((n)/(n+1) "when n is odd"),((n+1)/(n+2) "when n is even"):}