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Q1) Which of the following expression are polynomials in one variable and which are not ? state reasons for your answer.


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Answer 1

$\huge\green{\mid{\fbox{{คภรฬєг⤵}}\mid}}$

question 1,2,3 and 4 are one variable equation because they contain only one variable i.e. x,y,t and y respectively.

But question 5 is a two variable equation be because it contains two variables i.e. x and y.

$\huge\fbox\red{hσpє}\huge\fbox\pink{ít}\fbox\green{hєlp}\huge\fbox\blue{yóû}$

$\huge\fbox{\red{\underline{mαrk \; mє \; вrαínlíєѕt \; plєαѕє ♥}}}$

$\large\bf{\underline\blue{❥thαnk \; чσu ♥♥}}$

Answer 2

Answer:

$\huge\pink{\fbox{\tt{࿐αɴѕωєя࿐}}}$

(i) In 4x2−3x+7. all the indies of x are whole numbers.

So, it is a polynomial in one variable x.

(ii) In y²+root2 the index of y is a whole number.

So, it is a polynomial in one variable y

(iii) In 3root t+2root t =3t½+ root2 t, here the exponent of first term is ½

which is not whole number therefore is it not a polynomial.

(iv) In y+2/y =y+2y‐¹, here the exponent of first term is −1,

which is not whole number, therefore, is it not a polynomial.

(v) In x¹⁰+y³+t⁵⁰

is not a polynomial in one variable as three variable x,y and t occur in it.

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