if n be odd or even then the sum of n terms of the series 1-2+3-4+5-6 will be
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given (taking two consecutive terms together)
a₁=-1
a₂=-1
a₃=-1
d=0
aₙ=-1×-1×............ⁿ ᵗⁱᵐᵉˢ ×-1
aₙ=1;when n is even
and
aₙ=-1 ; When n is odd
a₁=-1
a₂=-1
a₃=-1
d=0
aₙ=-1×-1×............ⁿ ᵗⁱᵐᵉˢ ×-1
aₙ=1;when n is even
and
aₙ=-1 ; When n is odd
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Answer:
q. 6 is your answer
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