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Anushka Thakur. 10b
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- 1POLYNOMIALS A quadratic polynomial in x is of the form ax²+bx+c , where a, b, c are real numbers and a is not equal to 0. eg: 4x+2 , y+√2 , √3x+4 , .Degree Of The Polynomial
If p(x) is a polynomial In x , the highest power of x in p(x) is called the degree of the polynomial p(x). - 2LINEAR POLYNOMIAL A polynomial of degree 1 is called linear polynomial. Eg: √5x+8 , x - 2/11, 3z +4, 3/2 u +1QUADRATIC POLYNOMIAL
A polynomial of degree 2 is called quadratic polynomial.
The name quadratic has been derived from the word ' quadrate' which means 'square' .
Eg: 2x²+3x -2/5 , y²-2 , 2-x² , √5v-2/3v. - 3CUBIC POLYNOMIAL A polynomial of degree 3 is called a cubic polynomial. The most general form of cubic polynomial is ax³+bx²+cx+d. , Where a,b,c,d are real numbers and a not=to 0. Eg: 2-x³ , x³ , √2x³ , 3x-x²+x³ , .ZERO OF THE POLYNOMIAL
A real number k is said to be a zero of a polynomial p(x) , if p(k)=0.
Eg: p(x) of x²-3x-4 at x-1 is 0.
Therefore -1 is the zero of the given polynomial.
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- X Mathematics Flashcards on Anushka Thakur. 10b , created by Anushka Thakur on 26/08/2021.
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