3 years ago

Simplify a trigonometric expression using basic identities.

Mathematics

1 answer:

Sladkaya [172]3 years ago

7 0

Answer:

I will study about it and tell u

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Equivalent Fractions for 9/25:
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Step-by-step explanation:

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taurus [48]

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Antoinette's error

Option A) She distributed incorrectly.

Step-by-step explanation:

We are given the following information in the question:

Antoinette solves the linear equation

$3(x-3)+2x+9 = 2x+ 2(x-1)$

Antoinette made mistake in step 1 that is she did not distributed correctly.

If she would have distributed correctly, then she would have got the following solution:

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Substituting x = -1 in the given equation, we gwt:

$3(-1-3)+2(-1)+9 = 2(-1)+ 2(-1-1)\\-12-2+9 = -2-4\\-6=-6\\\text{which is true}$

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Step-by-step explanation:

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