Question

In an AP an=2n-1 then the product of first three term is​

Answer 1

Answer:

so first three terms are 1;3;5

Step-by-step explanation:

and product of these will be 15

Answer 2

Answer:

The product of first three terms = 15

Step-by-step explanation:

Given,

The nth term of an AP = aₙ = 2n -1

To find,

The product of first three terms of the AP

Solution:

Since nth term =  aₙ = 2n -1 -----------------(1)

Substituting the value of n = 1,2, 3 we get

a₁ = first term of the AP  = 2×1 -1 = 2 -1 = 1

a₂ = second term of the AP = 2×2 -1 = 4 -1 = 3

a₃ = Third term of the AP = 2×3 -1 = 6 -1 = 5

The first three terms are 1,3,5

Hence, the product of first three terms = 1×3×5 = 15

Answer:

The product of first three terms = 15

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