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if I bought a pen which cost $15 then I could write an expression:
on the other hand if I am going to buy a T.V. and I am not sure about its cost, I could write any one of the following expressions:
cost<$50, cost>$50, cost=$50.
in an inequality the two expressions are unequal while in an equation two expressions are exactly equal.
Properties of Inequalities
1 Hrs 0 Mins
Limits of Accuracy
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