Question

please answer with explanation​

Answer 1

Answer:

a

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a+1

.,.,.,.,.,.,.

Answer 2

Answer:

(b). log ( $\frac{a+1}{a-1}$ )

Step-by-step explanation:

log ( $\frac{a+1}{a+1-1}$ ) + log ( $\frac{a}{a-1}$ ) = log ( $\frac{a+1}{a}$ × $\frac{a}{a-1}$ ) = log ( $\frac{a+1}{a-1}$ )