SOLUTION: Show by counterexample that (x + y)^-2 and x^-2 + y ^-2 are not equivalent.

Algebra.Com
Question 94167This question is from textbook algebra and trigonometry
: Show by counterexample that (x + y)^-2 and x^-2 + y ^-2 are not equivalent. This question is from textbook algebra and trigonometry

Answer by edjones(8007)   (Show Source): You can put this solution on YOUR website!
Let x=4 y=9



EdJones

RELATED QUESTIONS

Show by counterexample that (x+y)^-2 and x^-2+y^-2 are not equivalent. please... (answered by jim_thompson5910)
i am supposed to show by counterexample that (x+y)^-2 and x^-2+y^-2 are not equivalent. i (answered by Alan3354)
WORD PROBLEM - SOLVE THE FOLLOWING POLYNOMIAL EQUATION Show by counterexample that... (answered by mathispowerful)
show by a counter example that (x+y)^-2 and x^-2+y^-2 are not... (answered by Fombitz)
Give a counterexample to show that (x+y)2 = x2 + y2 is false. (answered by richwmiller,MathLover1)
Show, using a numerical example, that the expressions (x+2)^2 and x^2+4 are not... (answered by ikleyn)
x and y are integers. show that x^2-y^2 is odd or divisible by... (answered by Jk22)
Evaluate the exponential values for three positive values of x, three negative values of... (answered by jim_thompson5910)
use the properties of exponents to simplify and show that y=6(2)^4x+1 is equivalent to... (answered by ikleyn)