sample2final (Math 121) - MATH 121 Sample Final Exam -...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
MATH 121 Sample Final Exam - Fall, 2006 Directions Answer all ten questions. Show your work neatly. You are not allowed to use any notes or index cards. Approximations will not be accepted, where exact answers are required. Example: 1 . 41421 . . . will not be accepted in place of the exact value 2. Cell phones or any other communication devices must be turned oF during the exam. You may need the following formulas : 1. cos( x + y ) = cos x cos y sin x sin y 2. sin( x + y ) = sin x cos y + cos x sin y 3. a 2 = b 2 + c 2 2 bc cos A 4. a sin A = b sin B = c sin C Grading # points score 1 20 2 20 3 20 4 20 5 20 6 20 7 20 8 20 9 20 10 20 Total 200 1
Background image of page 1

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

View Full DocumentRight Arrow Icon
1. Determine the exact solutions (real and complex) of the equation: x 5 x 4 x 3 x 2 2 x = 0 . 2. Use logarithms to Fnd the exact solution to 3 x = 4 2 x - 1 . 3. (a) Prove that 1 csc x sin x = sec x tan x .
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This essay was uploaded on 04/09/2008 for the course HIST, ENG 100-----16 taught by Professor Alexander----walser,krall during the Spring '08 term at Ill. Chicago.

Page1 / 3

sample2final (Math 121) - MATH 121 Sample Final Exam -...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online