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1. Which of the followino expresswns are polynomirds in one variable and which are not? State reasons for your answer: ... (i) 4,(l - 3% + 7 (ii) y2 + ./2 (iU1s .Ji + t.J2 (iv) y +. _! (v) xio + :I + t'6°.

1. Which of the followino expresswns are polynomirds in one variable and which are not? State reasons for your answer:
... (i) 4,(l - 3% + 7 (ii) y2 + ./2 (iU1s .Ji + t.J2
(iv) y +. _! (v) xio + :I + t'6°.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
3 years ago
•(i) 4 2 - 3x + 7 is a polynomial in variable x, as exponents of the variable in different terms are whole numbers. (ii) y2 + .Ji is a polynomial in variable y, as exponent of variable y is a whole number. POLYNOMIALS 27 (iii) 3..[i + t J2 = 8t112 + J2 t is not a polynomial, as exponent of variable t in first t.erm, i.e.• 3 t112 is not a whole number. (iv) y + - = y ..., 2y 1 is not a polynomial, as exponent of y the variable y in the term 2y- 1 is not a whole number. (v) .x10 + y3 + too is a polynomial in three variables.

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