Disprove the following statements using counterexample.

(a) |x| > 0
(b)√x2 = x
(c)√x2+4 = x+ 2
(d) x2 > x
(e) x ≤ x2

1 answer

|0| = 0
√x^2| = |x|. √(-2)^2 = √4 = 2
√(a^2 + b^2) ≠ a+b since (a+b)^2 = a^2+2ab+b^2
Why don't you try the others?
Similar Questions
    1. answers icon 2 answers
  1. Give a counterexample to disprove the following statement."If the shape is a polygon, then it has four sides." Parallelogram
    1. answers icon 1 answer
  2. Give a counterexample to disprove the following statement."If the polygon is a quadrilateral, then it has two pairs of congruent
    1. answers icon 1 answer
  3. Is the conditional statementtrue? If not, find a counterexample. If a vegetable is green, then it is broccoli. (1 point) The
    1. answers icon 1 answer
more similar questions