Find the derivative of the following functions (it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers):

sin (x+a)


Let f(x) = sin (x + a), accordingly f(x + h) = sin (x + h + a)


By first principle,



=


=


=


=


= cos (x + a)


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