you are the head boy or head girl of the school.your school is going to organise a fancy dress competition. write a notice informing the students of your school giving the essential details.
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Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.
Ans. (i) 4x2 – 3x + 7
⇒ 4x2 – 3x + 7x°
∵ All the exponents of x are whole numbers.
∴ 4x2 – 3x + 7 is a polynomial in one variable.
(ii)
∵ All the exponents of y are whole numbers.
∴ is a polynomial in one variable.
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