noor261259
noor261259 noor261259
  • 09-01-2021
  • Mathematics
contestada

If mn = 16 and m2 + n2 = 68. then
(m + n) 2 equals​

Respuesta :

salunkheharsh81 salunkheharsh81
  • 09-01-2021

Answer:

So, the value of mn is 72.

Step-by-step explanation:

Given, m−n=16 and m  

2

+n  

2

=400

We know that, (m−n)  

2

=m  

2

+n  

2

−2mn   ... (i)

By putting the given values in equation (i),

(16)  

2

=400−2mn

256=400—2mn

256−400=−2mn

—144=−2mn

72=mn

So, the value of mn is 72.

Answer Link

Otras preguntas

Why did the united states want to become an empire?
What did democratic governments attempt to change as a reaction to the Great Depression?
Genetic __________ are organisms that carry more than one genetically distinct population of cells derived from more than one zygote.
Wha is the height of a prism if the surface area is 460mm^2 A)13 MM B) 9.6 MM C) 7 MM D)12 MM
Consider two solutions, solution a and solution b. [h+] in solution a is 370 times greater than that in solution b. part a what is the difference in the ph va
what is the prime factor of 657 using exponenet
_____ cells from the body's skin, inner linings, and glands. NerveFatMuscleEpithelial
Which word shows the best meaning of the underlined word in this paragraph? Charlie’s family was not very prosperous, but that didn’t stop Charlie. He worked h
HELPPPPPP PLEASEEEEEE
Using 70 POINTS NEED YOUR HELP NOT SPAMMERS. To make an ice-cream cone, employees at an ice-cream shop completely fill the cone and then add one scoop of ice cr