# Section 10.1-10.3 Board Practice - PowerPoint PPT Presentation

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Section 10.1-10.3 Board Practice. Pre-Calculus. Problem 1. Find the exact value. sin 255˚. Problem 2. Find the exact value given:. Problem 3. If for an acute angle , find:. Problem 4. Simplify the expression sin( x+y ) secx• secy. Problem 5. Find the exact value. tan 105˚.

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Section 10.1-10.3 Board Practice

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## Section 10.1-10.3Board Practice

Pre-Calculus

### Problem 1

• Find the exact value.

sin 255˚

### Problem 2

• Find the exact value given:

### Problem 3

• If for an acute angle , find:

### Problem 4

• Simplify the expression

sin(x+y)secx•secy

### Problem 5

• Find the exact value.

tan 105˚

### Problem 6

• Find the exact value.sin75 • cos15 + cos75 •sin15

### Problem 7

• If for an acute angle , find:

tan

### Problem 8

• Simplify the expressioncos(30 + x) + cos (30 – x)

### Problem 9

• If for an acute angle , find:

### Problem 10

• Find the exact value.

cos75 • cos 15 + sin75 •sin15

### Homework

• Workbook: page 47, 48 and 51