Question

If logo 24 = a, then the value of log18 36, is k , where ke N. The value of kis 5-a​

Answer 1

Answer:

it's correct answer ok it's correct answer ok

Answer 2

The question mentioned is faulty. The values provided are not correct. The solution with correct values is mentioned below.

The required value is -10.

GIVEN: log₁₈³⁶ = a , log₂₄⁷² = b
TO FIND: 4(a+b) - 5ab
SOLUTION:

As we are given,

log₁₈³⁶ = a

Implying that,

18ᵃ = 36

18 * 2 = 36

Similarly,

24ᵇ = 72

24 * 3 = 72

Therefore,

a = 2

b = 3

Now,

4(a+b) -5ab

= 4(2+3) - 5.2.3

= 4(5) - 30

= 20 - 30

= -10

Therefore, the required value is -10

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