Logarithms IIT Questions (IX Class Mathematics)

What is logarithms? What are the laws of logarithms? How it is used in arithmetic? Let's watch the video and understand.

[Deniz.]

Everyone: b.

Me: greenscreen?!1?1!?1!1?1?2

[bhargavibanoth]

B is the answer
The question needs the knowledge of 2 logarithm formulae
Log(ab)=loga+logb
Log(a/b)= loga-logb

Use these formulas to simplify 2 log functions fx and fy

Equate the argument of resultant log function to (1+z/1-z)
Answer will be fz which is option b

[simrodevi]

bro the answer is b.

because
here f(x) =lg{(1+x)/(1-y)}[ let this be 1]that means that when input is x the expression is above but when f(y) is there means input will be y the thing will become
f(y)=lg{(1+y)/(1-y)} [let this be 2] so f(x)+f(y)= lg(1)+lg(2) which by property of lg of same base will be
this be3] and if you put option (b) inside in f(x) or f(argument written inb only argument not f symbol)={(1+(option b)}/{(1-(optionb) you will ge same as lg[3] so

[kasturipatra]

Ans. A, distributive property nahi kya, pardon me if I'm wrong, I am in class 7 😅😅

[RealDeathDefeater]

Tf the question is wrong.. there is no eqn of f(y)

[Subscribe_Please_]

How can be this IX class Mathematics 😂

[headshotgaming]

Bhai mene toh page le hi ans de Diya
😂😂
Exam pass 😂

[GAMING.GEEKSTER]

Me in nursery can easily solve ans is b