Question

1. What is the mean proportion of (x + y) and (x - y)?
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Answer 1

Answer:

mean prportion is:-

$\sqrt{x {}^{2} - y { }^{2} }$

Step-by-step explanation:

mean proportion in a,b,c is b.

here,a×c=b×b

so,b=

$\sqrt{a \times c}$

here,a=x+y

c=x-y

so,mean=

$\sqrt{(x + y)(x - y)}$

=

$\sqrt{x {}^{2} - y {}^{2} }$