Precalculus Semester 2 Skills Practice

Precalculus Semester 2 Skills Practice

Assessment

Flashcard

Mathematics

9th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the factored form of sin^2(x) + 3sin(x) + 2?

Back

(sin(x) + 2)(sin(x) + 1)

2.

FLASHCARD QUESTION

Front

What is the factored form of csc^3(x) - csc^2(x) - csc(x) + 1?

Back

cot^2(x)(csc(x) - 1)

3.

FLASHCARD QUESTION

Front

What must be true in order to ADD two matrices?

Back

The dimensions must be equal.

4.

FLASHCARD QUESTION

Front

What are the constraint and optimization equations for a closed rectangular box with square base made from 120 square inches of cardboard?

Back

2x^2 + 4xy = 120 and V = x^2y

5.

FLASHCARD QUESTION

Front

Which matrix is correct?

Back

Matrix B

6.

FLASHCARD QUESTION

Front

Define the sine function in terms of a right triangle.

Back

In a right triangle, sin(θ) = opposite side / hypotenuse.

7.

FLASHCARD QUESTION

Front

What is the Pythagorean identity involving sine and cosine?

Back

sin^2(x) + cos^2(x) = 1.

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