solve this pls.............
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Answered by
1
Step-by-step explanation:
= -1 + (-1)^2n + (-1)^(4n+1)
=> let's take 2n
=> n = 1,3,5,7,....
=> 2n = 2,6,10,14,.... always positive even.
=> (-1)^2n = 1
=> take 4n+1
=> n = 1,3,5,7,...
=> 4n+1 = 5,13,21,29,... always positive odd.
=> (-1)^4n+1 = -1
=> -1 + (-1)^2n + (-1)^4n+1
=> -1 + 1 - 1
=> -1
Answered by
0
Answer: -1
Step-by-step explanation: if we take n=3
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