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CBSE Class 12-science Answered

  If x = at2 and y = 2at , find d2y/dx2  at t = 2 Explain in great detail  
Asked by haroonrashidgkp | 25 Aug, 2018, 07:06: PM
answered-by-expert Expert Answer
begin mathsize 18px style straight x equals at squared
dx over dt equals 2 at
fraction numerator begin display style straight d squared straight x end style over denominator begin display style dt squared end style end fraction equals 2 straight a
straight y equals 2 at
fraction numerator begin display style dy end style over denominator begin display style dt end style end fraction equals 2 straight a
fraction numerator begin display style straight d squared straight y end style over denominator begin display style dt squared end style end fraction equals 0
fraction numerator begin display style straight d squared straight y end style over denominator begin display style dx squared end style end fraction equals fraction numerator fraction numerator begin display style straight d squared straight y end style over denominator begin display style dt squared end style end fraction over denominator fraction numerator begin display style straight d squared straight x end style over denominator begin display style dt squared end style end fraction end fraction equals 0 end style
Answered by Arun | 27 Aug, 2018, 12:59: PM
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