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# Ex5 - Math 17 TWHFW-7 1 st Sem AY 2011-12 Exercise Set 5(HW...

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Unformatted text preview: Math 17 TWHFW-7 1 st Sem AY 2011-12 Exercise Set 5 (HW 14) October 4, 2011 Use a separate piece of paper as your answer sheet. Show as complete a solution as you are able to, unless otherwise specified. Remember to box all final answers when solutions are necessary. Remember that calculators are not allowed. Submission is on Thursday, October 6. I. True or False. Write TRUE if the statement is true and FALSE otherwise. Answers only. 1. sin − 1 ( x ) is an odd function. 2. If y = arccsc( x ), then y ∈ QI or y ∈ QII. 3. All complex numbers have 5 unique complex 5 th roots. 4. If a = √ 5, b = 2- √ 3 and c = 2, then the triangle solution exists and is unique. 5. Arccot(arctan(sec(sin( x )))) is defined for any x ∈ R . 6. If γ = 30 ◦ , b = 3, c = 2, then the triangle solution exists and is unique. 7. The argument in the standard polar form of a complex number is unique for any such complex number....
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