consider the sequence 1,-2,3,-4,5,-6........what is the average of first 200 terms of sequence? Choose the correct choice from the following answers:
A) -1
B) -0.5
C) 0
D) 0.5
E) 1
1-2+3-4+5-6....................+199-200   = (1-2)+(3-4)+(5-6)....................+(199-200)   = -1-1-1......................(100 terms)   = -100   so, average= (-100)/200= -0.5   ANSWER:-0.5
<result>B</result>
consider the sequence 1,-2,3,-4,5,-6........what is the average of first 200 terms of sequence?