LA MATEMÁTICA EN LA HISTORIA Escribe los divisores de cada número y determina si son primos o compuestos ​

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

What is not true about kl and mn? what is mn? (show your work)