The third proportional to (x2-y2) and (x-y) is:

Options
- x/y
- x+y/y
- x-y/x+y
- x+y/x-y

CORRECT ANSWER : x-y/x+y

Discussion Board
Answer:

There is a formula to find the third proportion that is:b2=ac
Then through maths w.k.t x2-y2=x-y:x+y.
Substitute this in equation i.e:(x-y)2=(x-y)(x+y)*c
c=x-y:x+y

vageesh 10-5-2020 03:14 PM

requesting clear solution for above question

solution needed

Mahesh Banda 10-5-2019 12:08 PM

solution

Let the third proportional to (x2-y2) and (x-y) be z. Then,

(x2-y2):(x-y)::(x-y):z

=>(x2-y2)*z=(x-y)2

=> z=(x-y)2(x2-y2)=(x-y)(x+y)

deepak soni 10-5-2018 01:53 AM

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