mac1147_review_1 - REVIEW - UNIT 1 MAC 1147 FORMULAS TO...

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

View Full Document Right Arrow Icon
REVIEW - UNIT 1 MAC 1147 FORMULAS TO MEMORIZE: if 0 if 0 xx x = < , 0 x 22 2 () 2 x yxx y y + =+ + 2 2 x y y =− + x yx y x y + 33 2 2 ( ) x y x x y y −=− ++ 2 2 ( ) x y x x y y +=+ −+ 2 23 3 3 x y x y y + + + 2 3 3 x y x y y + 2 x x = The Quadratic Formula: 2 4 2 bb a c x a −± = 1. Write without absolute value signs and simplify: (a) 2 21 1 x +− − + (b) 53 π −−− (c) 312 4 1 rr +− if 3 r > 2. Let 1 x and 3 y = . Evaluate: (a) 2 1 642 xy yx xy −+ ÷÷ −−+ (b) 12 43 x y x y + 3. Let 1 4 3 00 3 1 5 1 {2 ,, 4 ,, 8 ,,, ,, 1 6 , 0 . 6 } 30 0 5 2 A . List the elements that belong to each set: (a) Natural numbers, (b) Integers, (c) Rational numbers, (d) Irrational numbers, (e) Real numbers. 4. Perform the indicated operations and simplify: (a) 1 11 ⎛⎞ ⎜⎟ −− ⎝⎠ (b) 32 24 4 x x x + 5. Factor completely over the real numbers: (a) 4 ( 2) 6 ( 2) 2 ( 2) + (b) 42 3 41 6 4 x x (c) 12 ( d ) 52 32 4 x x
Background image of page 1

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

View Full DocumentRight Arrow Icon
6. Reduce the fraction to the lowest terms. Find the domain of the fraction.
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.

Page1 / 3

mac1147_review_1 - REVIEW - UNIT 1 MAC 1147 FORMULAS TO...

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