First five term for An=n^2-2n
1 answer:
First 5 terms are: -1,0,3,8,15
Step-by-step explanation:
we will put n=1,2,3,4,5 to find first 5 terms of the sequence
Explicit formula for sequence is:
Putting n=1
Putting n=2
Putting n=3
Putting n=4
Putting n=5
Hence,
First 5 terms are: -1,0,3,8,15
Keywords: Arithmetic sequence, Common difference
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Follows are the solution to the given point:
Step-by-step explanation:
In point a:
¬∃y∃xP (x, y)
∀x∀y(>P(x,y))
In point b:
¬∀x∃yP (x, y)
∃x∀y ¬P(x,y)
In point c:
¬∃y(Q(y) ∧ ∀x¬R(x, y)) ∀y(> Q(y) V ∀ ¬ (¬R(x,y)))
∀y(¬Q(Y)) V ∃xR(x,y) )
In point d:
¬∃y(∃xR(x, y) ∨ ∀xS(x, y))
∀y(∀x>R(x,y)) ∃x>s(x,y))
In point e:
¬∃y(∀x∃zT (x, y, z) ∨ ∃x∀zU (x, y, z))
∀y(∃x ∀z)>T(x,y,z) ∀x ∃z> V (x,y,z))