Question

Algebraic form of an arithmetic sequence is 7n-4
a) what is its first term ?
b) Find its 10th term?​

Answer 1

Answer:

X₁ = 3

X₁₀ = 66

Step-by-step explanation:

QUESTION:-

Algebraic form of an arithmetic sequence is 7n-4

TO FIND:-

a) what is its first term ?

b) Find its 10th term?​

SOLUTION:-

WE HAVE ALGEBRIC FORM OF THE AP i.e. 7n-4

FIRST TERM = X₁ = 7×1-4

                  ⇒   X₁ = 3

10'TH TERM = X₁₀ = 7×10-4

                   ⇒  X₁₀ = 66

THERE FORE,

 X₁ = 3

X₁₀ = 66