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  • What can we deduce from the following mathematical expression? Option: 1</

What can we deduce from the following mathematical expression?

x^2=9

Option: 1

x=3


Option: 2

x=\sqrt{9}


Option: 3

x=\pm 3


Option: 4

Both (B) and (C)


Answers (1)

best_answer

 

 

Principle of Mathematical Induction -

Mathematical induction is one of the techniques which can be used to prove a variety of mathematical statements which are formulated in terms of n, where n is a positive integer

Principle of Mathematical Induction

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x^2=9

\Rightarrow x^2-9=0\Rightarrow \left ( x-3 \right )\left ( x+3 \right )=0

Thus x=\pm 3

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