De las siguientes expresiones qué parte debes seleccionar para “u” y para “du”. Resuelve correctamente cada integral (método de sustitución).
∫ Ln x
1
x
dx =
u =
du =

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30