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HW01-problems

# HW01-problems - doan(dcd597 HW01 gilbert(54820 This...

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doan (dcd597) – HW01 – gilbert – (54820) 1 This print-out should have 20 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0points Simplify the expression parenleftBig xy 3 z parenrightBig 6 ÷ parenleftBig y 2 x 1 / 4 z 3 parenrightBig 16 as much as possible, leaving no negative ex- ponents and no radicals. 1. x 10 z 51 y 50 2. x 10 y 50 z 51 3. x 2 y 14 z 45 4. x 10 y 14 z 45 5. x 10 y 50 z 51 002 10.0points Simplify the expression f ( x ) = 3 + 9 x - 2 1 - 3 parenleftBig x x 2 - 4 parenrightBig as much as possible. 1. f ( x ) = 3( x + 2) 2 x - 4 2. f ( x ) = 3( x - 2) x - 4 3. f ( x ) = x + 2 x + 4 4. f ( x ) = x - 2 2 x + 4 5. f ( x ) = 3( x + 2) x - 4 6. f ( x ) = x - 2 x + 4 003 10.0points Which, if any, of the following statements are true when a, b are real numbers? A. Forallpositive a and b , a + b = a + b . B. Forall a and b , radicalBig ( a + b ) 2 = a + b . C. Forallpositive a and b . a - b a + b = a + b . 1. A only 2. A and C only 3. all of them 4. B only 5. none of them 6. C only 7. B and C only 8. A and B only 004 10.0points Simplify the expression f ( θ ) = 1 - cos 2 θ , eliminating the radical. 1. f ( θ ) = 2 sin θ

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doan (dcd597) – HW01 – gilbert – (54820) 2 2. f ( θ ) = 2 sin 2 4 θ 3. f ( θ ) = 2 | cos θ | 4. f ( θ ) = 2 | sin θ | 5. f ( θ ) = 2 cos 2 4 θ 6. f ( θ ) = 2 cos θ 005 10.0points Find the area of the shaded region shown in outside the square and inside the circle when
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HW01-problems - doan(dcd597 HW01 gilbert(54820 This...

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