QUEST HW 8

# QUEST HW 8 - roberts (eer474) – HW 08 – windle –...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: roberts (eer474) – HW 08 – windle – (56747) 1 This print-out should have 9 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Compute the exact value of cos parenleftBig sin- 1 parenleftBig 3 4 parenrightBigparenrightBig . 1. cos parenleftBig sin- 1 parenleftBig 3 4 parenrightBigparenrightBig = 4 5 2. cos parenleftBig sin- 1 parenleftBig 3 4 parenrightBigparenrightBig = √ 7 4 correct 3. cos parenleftBig sin- 1 parenleftBig 3 4 parenrightBigparenrightBig = 3 5 4. cos parenleftBig sin- 1 parenleftBig 3 4 parenrightBigparenrightBig = 3 √ 7 5. cos parenleftBig sin- 1 parenleftBig 3 4 parenrightBigparenrightBig = 4 √ 7 Explanation: By the definition of sin- 1 ( x ), cos parenleftBig sin- 1 parenleftBig 3 4 parenrightBigparenrightBig = cos θ where sin θ = 3 4 and, by Pythagoras, θ is the angle shown in the right triangle θ √ 7 3 4 (not drawn to scale). Consequently, cos parenleftBig sin- 1 parenleftBig...
View Full Document

## This note was uploaded on 11/08/2010 for the course M 305G taught by Professor Léger during the Fall '08 term at University of Texas.

### Page1 / 3

QUEST HW 8 - roberts (eer474) – HW 08 – windle –...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online