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## Explanation & Answer

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Unit 7 Evaluation

Advanced Algebra 2 (MTHH 040 057)

This evaluation will cover the lessons in this unit. It is open book, meaning you can use your

textbook, syllabus, and other course materials. To submit the evaluation, follow the directions

provided.

A graphing calculator may be used on this evaluation. You may also use scratch paper to

work out the solutions. Select the response that best completes the statement or answers

the question.

____1. Which expression is not equal to the other three expressions?

a.

b.

c.

d.

2

tan

cot

1

2

sin

1

cos

2

2cos

sin

____2. Which equation is not true?

a. cos2 1 sin2

b. cot2 csc2 1

c. sin2 cos2 1

d. tan2 sec2 1

____3. Which expressions are equivalent?

I. (sin )(csc sin )

II. sin2 1

III. cos2

a. I and II

b. II and III

Unit 7 Evaluation

MTHH 040

c. I and III

d. I, II, and III

____4. How can you express csc2 2cot2 in terms of sin and cos ?

a.

b.

1 2 cos 2

sin2

1 2 sin2

sin2

c. sin2 2cos2

1

2

d.

2

sin tan2

____5. Which expression is equivalent to

tan

?

cos sec

a. csc

b. sec

c. csc

d. tan2

____6. Which of the following is not equal to 60 ?

3

2

1

b. cos1

2

1

3

c. tan...