Given "If | x + 1 | = 4 ,then x=3, -5 "
$(x + 1 | = 4 x + 1 = 4 or x + 1 = - 4 x = 3 or x = - 5$
Which method has been used for proving the above statement ?

Direct method

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Contrapositive

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Contradiction

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Counter example

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Solution

The correct option is A Direct method
For "If P then Q" the direct method involves proving that Q is true if P is true.

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