Question

what is the value of this ​

Answer 1

Answer:

$log_{ \frac{1}{8} }(7) \times log_{ \frac{1}{9} }(8) \times log_{ \frac{1}{7} }(9) \\ \\ - log_{8}(7) \times - log_{9}(8 ) = log_{9}(7) \times - log_{7}(9) \\ = - 1$

Step-by-step explanation:

we know

$log_{b}(a) \times log_{a}(b) = 1$

andanswer is -1

Answer 2

Answer:

log

8

1

(7)×log

9

1

(8)×log

7

1

(9)

−log

8

(7)×−log

9

(8)=log

9

(7)×−log

7

(9)

=−1

Step-by-step explanation:

we know

log_{b}(a) \times log_{a}(b) = 1log

b

(a)×log

a

(b)=1

and answer is -1