Question

plz tell the answer step by step

it's answer is this m-(m-1)/mn

but I don't how it's comes ​

Answer 1

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Intergalactic gas is so tenuous that it emits no light of its own. ... Instead astronomers study it indirectly by observing how it selectively absorbs the light coming from faraway sources known as quasars.

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Answer 2

Answer:

The answer is n(m-n)/mn

Step-by-step explanation:

we get the above answer by cross multiplying it

1. -. .(m-n)

n. mn

1×mn= n(m-n)

mn = n(m-n)

Here's your answer.

Hope it helps you ❤️