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Is 0.2 a root of the equation x^(2)-0.4=...

Is 0.2 a root of the equation `x^(2)-0.4=0`? Justify your answer.

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To determine whether 0.2 is a root of the equation \( x^2 - 0.4 = 0 \), we can follow these steps: ### Step 1: Substitute the value into the equation We will substitute \( x = 0.2 \) into the left-hand side of the equation \( x^2 - 0.4 \). \[ LHS = (0.2)^2 - 0.4 \] ...
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NCERT EXEMPLAR ENGLISH-QUADRIATIC EQUATIONS-VERY SHORT ANSWER
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  9. State whether the following quadratic equations have two distinct real...

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  10. State whether the following quadratic equations have two distinct real...

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  11. Write whether the following statements are true or false. Justify your...

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  12. A quadratic equation with integral coefficients has integral roots. Ju...

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  13. Does there exist a quadratic equation whose coefficients are rational ...

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  14. Does there exist a quadratic equation whose coefficients are all disti...

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  15. Is 0.2 a root of the equation x^(2)-0.4=0? Justify your answer.

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  16. If b=0,c<0, is it true that the roots of x^2+bx+c=0 are numerically eq...

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