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October 20, 2014

Posts by Shym


Total # Posts: 3

Chemistry
What are the conditions required for the following reactions to occur: 1. Addition reaction of alkenes with hydrogen halides. 2. Addition reaction of alkenes with halogens. 3. The dehydration of alcohols. Thanks.
June 7, 2007

Maths
Hi, can someone give me the answer to this question: secA-tanA=1/4. Find cosA I got: CosA=4(1-sinA) Is my answer good? Now multply each side by (1+sinA) CosA(1+sinA)=4 cos^2 A CosA=1/4 (1+sinA) 16(1-sinA)=1+sinA 15=17SinA So you have sinA, now find Cos A from your equation you...
June 3, 2007

English essay
I have to write an essay on " Human beings have unlimited desires but limited resources.Is it possible to reconcile the two?" Can you help me plz. I have no idea what to write in the intro. Thx :-) Your title reminds me of the Band leader in the production of Music ...
April 9, 2007

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