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**rotation**by 90° about the origin. The general rule for a**rotation**by 90° about the origin...the object. lets say you have a point P(2,-3). The 90 degree**rotation**would place it at P'(3,2) under our general rule. You will see...1 Answers · Science & Mathematics · 14/05/2010

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**Rotation**90 degrees clockwise: (x,y) --> (y,-x) Think of it like this, clockwise...after you switch x and y, the number on the right is negated. ~**Rotation**90 degrees counterclockwise: (x,y) --> (-y,x) Counterclockwise...1 Answers · Education & Reference · 10/04/2016

**Rotation**by half the angle. If R(theta/2) is the**rotation**matrix for angle theta/2, R(theta/2)*R(theta/2) is two**rotations**by theta/2, equivalent to a single**rotation**by theta which is R(theta).. .2 Answers · Science & Mathematics · 01/03/2013

If you need to learn basic

**rotations**, you should play on JV. I won't take any girl on varsity who...3 Answers · Sports · 05/07/2012

Stereoisomerism about double bonds arises because

**rotation**about the double bond is restricted, keeping the substituents...6 Answers · Science & Mathematics · 17/05/2008

...the twisting force F = MA when applied to a radius of

**rotation**R. In other words torque is just F = MA...1 Answers · Science & Mathematics · 24/09/2012

...that limits the number of pitchers in a starting

**rotation**. You could conceivably have a 6-man starting**rotation**, but most ...12 Answers · Sports · 17/03/2007

**Rotation**of a body is the body spinning around its own axis; like the**rotation**...3 Answers · Science & Mathematics · 30/01/2009

**Rotation**and translation are "affine" transformations. So if you have a set of points... will be the same as the corresponding two points in Y. So, in summary,**rotations**and translations are affine transformations and therefore: 1) Angles are...2 Answers · Science & Mathematics · 14/12/2008

... are correct in thinking that the specific

**rotation**of enantiomers should be equal and opposite. ... will have a significant effect on the specific**rotation**. Natural products can be isolated...2 Answers · Science & Mathematics · 06/07/2009

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