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I Can someone help me with these 2 questions?

  1. Jan 29, 2017 #1
    http:////d2vlcm61l7u1fs.cloudfront.net/media%2F67b%2F67b9588d-43c1-42d7-9302-3903b896b80a%2FphpcWj7o2.png
     

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  2. jcsd
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