Question

if the first term and the commond difference fan ap pare6and 5 resp .find its 3rd term
​

Answer 1

Step-by-step explanation:

T

T n

T n

T n =a+(n−1)d

T n =a+(n−1)dWhere a is the first term, d is the common difference and T

T n =a+(n−1)dWhere a is the first term, d is the common difference and T n

T n =a+(n−1)dWhere a is the first term, d is the common difference and T n

T n =a+(n−1)dWhere a is the first term, d is the common difference and T n denotes the n-th term.

T n =a+(n−1)dWhere a is the first term, d is the common difference and T n denotes the n-th term.Substituting accordingly from the question:

T n =a+(n−1)dWhere a is the first term, d is the common difference and T n denotes the n-th term.Substituting accordingly from the question:80=5+(n−1)⋅3⟹n−1=25⟹n=

T n =a+(n−1)dWhere a is the first term, d is the common difference and T n denotes the n-th term.Substituting accordingly from the question:80=5+(n−1)⋅3⟹n−1=25⟹n= 26

T n =a+(n−1)dWhere a is the first term, d is the common difference and T n denotes the n-th term.Substituting accordingly from the question:80=5+(n−1)⋅3⟹n−1=25⟹n= 26

T n =a+(n−1)dWhere a is the first term, d is the common difference and T n denotes the n-th term.Substituting accordingly from the question:80=5+(n−1)⋅3⟹n−1=25⟹n= 26

Answer 2

Answer:

a=6, d=5. tn=a+ n-1×d :: t3=6+3-1×3 :: t3= 6+2×3 :: t3= 6+6 :: t3= 12

Step-by-step explanation:

ans : the third termbof an A.P. is 12