2 years ago

Select the equivalent expression:

Mathematics

1 answer:

guapka [62]2 years ago

7 0

Answer:

On opening the bracket, we have (x^-28)/(x^56)

This is the same as (x^-28) . 1 / (x^56)

Following the law of indices 1/(x^a) = x^-a, we have 1 / (x^56) = (x^-56)

Hence (x^-28) . (x^-56)

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(5;8)
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Step-by-step explanation:

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Find the reference number of 11pi/9

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Unsure of what you mean by "reference number."

I do recognize that 11pi/9 is in quadrant III. I suspect that the so-called "reference number" is the acute angle between the end ray of 11pi/9 and pi, or, in more easily comparable numbers, between 9pi/9 and 11pi/9.

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