Exercise 2.1
Q1.Which of the following expressions are polynomials in one variable and which are not ? State reasons for your answers.
a)4x² - 3x + 7
Sol)Yes it is a polynomial in one variable because the power of the variable is a whole number.
b)y² + /2
Sol)Yes it is a polynomial in one variable because the power of the variable is a whole number.
c)3 /t + t /2
Sol)3 x 1/2 x t x 1/2 x 2
3 x 1t/2 + T
No it is not a polynomial because the power of the variable is in fraction
d) y + 2/y
Sol) y + 2y-²
No it is not a polynomial because the power of the variable is a negative integer
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