1.

Which of the following relations is NOT always true?

Answer»

`abs(p+q) LE absp + absq`
`abs(p-q) le absp - absq`
`absp - absq GT 0`, if `p^2 - q^2 gt 0`
`abs(p-q)^2 = (p-q)^2`

Answer :B


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