Question

please answer fast ​

Answer 1

Answer:

expansion of log120/49 is given below

Step-by-step explanation:

prime factorisation of 120= 2 ×2×2×3×5=2³ ×3×5

     Prime Factorisation of 49 = 7×7=  7²

log  120/49= log120 -log49    as loga/b= log a-log b

                     =log 2³ ×3×5  - log  7²

                       = log 2³ + log 3+ log5 - log  7²  as( log a×b= loga +log b)

                        =3log 2 +log3 + log 5 - 2log7  as( log a² = 2loga

Answer 2

Answer:

simply by applying

$log( \binom{a}{b} ) = log(a - log(b) )$

so log120-log49