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Aleonysh [2.5K]
3 years ago
5

What is the product of 2x-5 and 3x2 + 5x - 7? Write your answer in standard form.

Mathematics
1 answer:
jasenka [17]3 years ago
5 0

Step-by-step explanation:

this is your answer..........

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The answer to your question is letter E. cos²α

Step-by-step explanation:

                     

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                            \frac{cos^{2}\alpha }{sin^{2} \alpha} - \frac{cos^{2}\alpha }{sin^{2}\alpha } cos^{2}\alpha

                                 \frac{cos^{2}\alpha - cos^{4}\alpha }{sin^{2}\alpha }                     Factor  cos²α

                                \frac{cos^{2}\alpha(1 - cos^{2}\alpha }{sin^{2}\alpha }

Remember that   sin²α = 1 - cos²α

                                \frac{cos^{2}\alpha sin^{2}\alpha}{sin^{2} \alpha}

Simplify

                              cos²α

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