Question

R(x)= sqr5/x^6

R'(x)

Answer 1

d ( x ^ n ) / dx = n x ^ ( n - 1 )

d ( x ^ - 6 ) / dx = - 6 x ^ ( - 6 - 1 ) = - 6 x ^ - 7

d [ sqr 5 ( x ^ - 6 ) ] / dx =

sqr 5 ( - 6 ) x ^ - 7 =

- 6 sqr 5 / x ^ 7