9^n+9^n+9^n = 3²⁰¹³, what is the value of n
Answers
Answered by
3
Step-by-step explanation:
9^n + 9^n + 9^n = 3²⁰¹³
9^n = (3^2n)
3^2n + 3^ 2n + 3^2n = 3²⁰¹³
3(3^2n) = 3²⁰¹³
3^2n = 3²⁰¹³/3
3^2n = 3²⁰¹²
when bases are equal powers can be equated
so 2n = 2012
n = 2012/2
n = 1006
Answered by
0
Answer:
The value of n = 1006
Step-by-step explanation:
Given data
9ⁿ + 9ⁿ + 9ⁿ = 3²⁰¹³
Here we need to find value of n
9ⁿ + 9ⁿ + 9ⁿ = 3²⁰¹³
3 ( 9ⁿ ) = 3²⁰¹³ [ ∵ aⁿ + aⁿ = 2aⁿ ]
3 (3²)ⁿ = 3²⁰¹³ [ ∵ 9 = 3² ]
3 (3²ⁿ) = 3²⁰¹³ [ ∵ (aⁿ)ᵇ = aⁿᵇ ]
3¹ 3²ⁿ = 3²⁰¹³ [ ∵ a = a¹ ]
3¹⁺²ⁿ = 3²⁰¹³ [ ∵ aⁿ (aᵇ) = aⁿ⁺ᵇ ]
⇒ 1 + 2n = 2013
⇒ 2n = 2012
⇒ n = 1006
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