Please answer with solution Q. 22 to Q. 30.
Answers
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)
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)