_$${\text{If}}\,\,\,\log \frac{a}{b} + \log \frac{b}{a} = \log \left( – McqOptions

MCQOPTIONS

1.	_$${\text{If}}\,\,\,\log \frac{a}{b} + \log \frac{b}{a} = \log \left( {a + b} \right),\,\,{\text{then}} - $$$?
A.	a + b = 1
B.	a - b = 1
C.	a = b
D.	a2 - b2 = 1
Answer» B. a - b = 1

Discussion

No Comment Found

Related MCQs

The value of log2 16 is:
If log10&nbsp2 = 0.3010, the value of log10&nbsp80 is:
The value of log2&nbsp16 is:
If log 2 = 0.3010 and log 3 = 0.4771, the value of log5&nbsp512 is:
If log 2 = 0.30103, the number of digits in 264&nbspis:
\eqalign{ & {\text{If}}\,{\log _{10}}a = p,\,\,\,{\log _{10}}b = q, \cr & {\text{then}}\,{\text{what}}\,\,{\text{is}}\,\,{\log _{10}}\left( {{a^p}{b^q}} \right)\,\,{\text{equal}}\,\,{\text{to}}? \cr} $$%!
\eqalign{ & {\text{If}}\,\log 3\log \left( {{3^x} - 2} \right)\,{\text{and}}\,\log \left( {{3^x} + 4} \right)\, \cr & {\text{are}}\,{\text{in}}\,{\text{arithmetic}}\,\,{\text{progression}}\,{\text{,}} \cr & {\text{then}}\,x\,{\text{is}}\,{\text{equal}}\,{\text{to}} - \cr} $$%!
\eqalign{ & {\text{The number of digits in }}{{\text{4}}^9} \times {{\text{5}}^{17}}{\text{,}} \cr & {\text{when expressed in usual form, is - }} \cr} $$%!
{\rm{If}}\log {a \over b} + \log {b \over a} = \log \left( {a + b} \right),{\rm{then:}}$$%!
*$_$$\eqalign{ & {\text{If}}\log 2 = 0.30103, \cr & {\text{the}}\,{\text{number}}\,{\text{of}}\,{\text{digits}}\,{\text{in}}\,{4^{50}}{\text{is}} - \cr} $$?