nehadani nehadani

17-04-2015
Mathematics

contestada

Prove that mn < 0 if and only if m > 0 and n < 0 or m < 0 and n > 0

Respuesta :

18-04-2015

Only one number can but negative for it to be true.

If both positive then product is positive

If both negative then product is also positive

(-1)*(-1)=1

Answer Link

Otras preguntas

Which is the solution to the inequality below?

within her company, nadine utilizes a management style that varies according to the individual and environmental situation, with a strategy for minimizing error

Name the four U.S. cultural regions (Northeast, South, Midwest, and West) in separate columns. Describe each region by focusing on facts and details that make e

To be prudently silent is to be

Can someone pls help me I’ll give points!!

Which conversion factor would you use to convert from meters to feet? 0.3048 m 1 ft 1 ft 0.3048 m 1.61 miles km in. 2.54 cm

Which of the following would be considered a case of wrongful termination, and why? (1 point) a) An employee is dismissed because her independent contract expir

A car's onboard navigation system receives a signal that an accident has occurred a short distance ahead, and alerts the driver while proposing an alternate rou

Which aspect of setting is most prominent in the above passage?

Three lakes lost water during a drought. Lake Jensen lost one third of its water, Lake Parlow lost 34% of its water, and Lake Stockton lost one hundred forty se