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baherus [9]
3 years ago
15

A pet store sells rabbits,

Mathematics
2 answers:
IceJOKER [234]2 years ago
7 0

Answer:

rabbits + birds

rabbits + hamsters

hamsters + fish

hamsters + birds

rabbits + fish

birds + fish

I hope this helped and please mark me as brainliest!

Sedaia [141]2 years ago
6 0

rabbit + hamster

rabbit + bird

rabbit + fish

hamster + bird

hamster + fish

bird + fish

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• expand the functions of 2<em>A</em> using the double angle identities

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• factor out sin(<em>A</em>) cos(<em>A</em>)

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• simplify the last factor using the Pythagorean identity, 1 - sin²(<em>A</em>) = cos²(<em>A</em>)

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• rearrange terms in the product

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… = 4 sin(<em>A</em>) cos(<em>A</em>) / (2 - 1/cos²(<em>A</em>))

• rewrite cos = 1/sec, i.e. sec = 1/cos

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• divide through again by cos²(<em>A</em>)

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• rewrite sin/cos = tan and 1/cos = sec

… = 4 tan(<em>A</em>) / (2 sec²(<em>A</em>) - sec⁴(<em>A</em>))

• factor out sec²(<em>A</em>) in the denominator

… = 4 tan(<em>A</em>) / (sec²(<em>A</em>) (2 - sec²(<em>A</em>)))

• rewrite using the Pythagorean identity, sec²(<em>A</em>) = 1 + tan²(<em>A</em>)

… = 4 tan(<em>A</em>) / ((1 + tan²(<em>A</em>)) (2 - (1 + tan²(<em>A</em>))))

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… = 4 tan(<em>A</em>) / ((1 + tan²(<em>A</em>)) (1 - tan²(<em>A</em>)))

• condense the denominator as the difference of squares

… = 4 tan(<em>A</em>) / (1 - tan⁴(<em>A</em>))

(Note that some of these steps are optional or can be done simultaneously)

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