Page 40 - Math SL HB Sem 2
P. 40

Example 2 : Differentiate  ( 3x  4  with respect to x. Hence find
                                                -
                                                   )6
                                a1  [ta6x-q'ax               a1  lPx-q'ax










                                                                                        I
                                                                       (3x-4)6+            (3x-4)6+cl
                                                                 [Ans:                '18


                  General form of integration:   Jqrlar  -  integrate with respect to x

                                                 Jfltlat  -  integrate with respect to t
                                                      I  -
                                                    o  a,   integrate with respect to u
                                                 Jf1
                  WRONG  !!! :               ,
                                     If(u)dx  Ir(x)



                  RE IN FO R C EM E NT EXE RC IS ES :


                  1. Differentiate    with respect to x. Hence, find
                                  "'3
                                   2
                                       dx                            lAns:1e"+c1
                                 J- "*3
                  2. Ify=1n1*z*4),  frnd its derivative. Hence, find
                                                                             1
                                 h?*                                  I  Ans:  2  ln (x2 +41 +c1


                  3. Find the function f(x) if


                   "l  Jrfxf*:]1"   (t + 2x3)  + c                   tAr";#l

                   uy            26-h0+J;)+c                         LAns:   1        1    l
                       Jrlxpx=                                               --     x +2x
                                                                            {,I
                   c)   J{*)o*=-d-7*"                                tnns:   pl
                                                                             4l-x'
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