Find the value of log base 2 [log base 2 {log base 3 ( log base 3 27³)}]
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Required Answer:-
Given To Evaluate:
- ㏒₂[㏒₂{㏒₃(㏒₃27³)}]
Solution:
We know that,
→ ㏒ₓyⁿ = n ㏒ₓy
So,
㏒₂[㏒₂{㏒₃(㏒₃27³)}]
= ㏒₂[㏒₂{㏒₃( ㏒₃(3³)³)}]
= ㏒₂[㏒₂{㏒₃(㏒₃3⁹)}]
= ㏒₂[㏒₂{㏒₃(9 ㏒₃3)}]
As ㏒ₓx = 1 (x ≠ 1), so we get,
= ㏒₂[㏒₂{㏒₃(9)}]
= ㏒₂[㏒₂{㏒₃(3)²}]
Again, applying the same formula, we get,
= ㏒₂[㏒₂{2 ㏒₃3}]
= ㏒₂[㏒₂{2}]
= ㏒₂[1]
As 2⁰ = 1, therefore,
→ ㏒₂(1) = 0
★ So, the final result obtained is - 0.
Answer:
- ㏒₂[㏒₂{㏒₃(㏒₃27³)}] = 0
Logarithms Formula:
- n = ㏒(x) or 10ⁿ = x.
- ㏒(x) is same as ㏑(x)
- ㏒ₓ(1) = 0, (x ≠ 0, 1)
- ㏒ₓ(a/b) = ㏒ₓ(a) - ㏒ₓ(b), a/b>0
- ㏒ₓ(ab...) = ㏒ₓ(a) + ㏒ₓ(b) +...
- ㏒ₓ(1/n) = -㏒ₓ(n)
- ㏒ₓyⁿ = n ㏒ₓy
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