Prove Componendo Dividendo and Illustrate with an Example

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Thank you very much sir. You are a great teacher.

PV-pgfg
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Sir can you please explain when to conjugate when it comes to these types of sums

daniellalyngdoh
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Very clearly explained the concept in a soft voice.I really liked it.

satenderpalsingh
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Very nicely explained. ..thank u so much

bennysebastian
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Sir why we add only one on both sides but do not add any other no. Like 2, 3....etc.

anjalikumari
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Watch the video at 1.5x
You will save your time..

nishisaklani
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I find this very use full, but I also want Invertendo and Alternando

Mryellotooth
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hmm - I'm confused here... A ratio of a:b isn't the same as a fraction a/b.
A ratio of three red squares to two green squares gives a total of 5 squares. The ratio of 3:2 doesn't mean 3/2 it means that 3/5 are red and 2/5 are green (the ratio represents the numerators of the fraction). SO I find the premise that a:b = c:d is equivalent to a/b = b/c confusing.


Let me try and explain myself more clearly...
Let a=3, b=2, c=6, d=4
The ratio of 3:2 can be expressed as a fractional ratio of (3/2) : 1.
This will be equivalent to the ratio 6:4 being expressed as a fractional ratio (6/4):1


As far as I can see all that has happened is a and b have been scaled by some factor to give c and d.
I'll need to do some examples to let this sink in I think

KLiCuk
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Hi sir u can also apply the rule agin on the expression (x+4)÷(x-4)=9
It will be easier

noreldenzenky