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Somebody please help!! Need somebody to solve/explain this to me

Somebody please help!! Need somebody to solve/explain this to me-example-1

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P ⇔ Q is equivalent to the pair of conditionals P ⇒ Q and Q ⇒ P.

Your conditional statements are ...

  1. If two lines intersect to form 4 right angles, then they are perpendicular.
  2. If two lines are perpendicular, then they intersect to form 4 right angles.
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