Ashvin1
Ashvin1
24-03-2017
Mathematics
contestada
If x+1/x=4,find the value of (x-1/x)^2
Respuesta :
konrad509
konrad509
24-03-2017
[tex]\left(x-\dfrac{1}{x}\right)^2=\\ x^2-2+\dfrac{1}{x^2}=\\ x^2+2+\dfrac{1}{x^2}-4=\\ \left(x+\dfrac{1}{x}\right)^2-4=\\ 4^2-4=16-4=12 [/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 21+ )
Otras preguntas
Please help me answer this question
PLEASE HELP ME THIS IS URGENT!!!!!!!!!!! 1) What are the factors that allow for and inhibit the spread of democracy? FOR BREXIT (The UK exiting from the E.U.)
By the end of the Civil War, in the summer of 1865, most enslaved people had been freed because of _____. Select the best answer from the choices provided. A.
Which is the side length of a cube with a volume of 125 m3?A.3 to the square root of 125mB.3 to the square root of 5mC.the square root of 125mD.125 3over pie[te
Where is Fiji Located? (50 Points)
Drag and drop the missing values of the relation into the correct boxes to complete the table below.
Simon makes 30 cakes he gives 1/5 of the cakes to sali he gives 10% of the cakes to June what fraction of the cakes does he have left
How do I answer this question I don’t understand it
10 glasses cost 40 dollars how much 20 glasses cost
What qualities does she propose are essentially "American"? Explain.
