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2. Polynomials
easy
નીચેના વિધાનો સત્ય છે કે અસત્ય ?
$y^{2}+y-6$ નું શૂન્ય $-3$ છે.
Option A
Option B
Option C
Option D
Solution
A zero of a polynomial $p ( x )$ is a number $c$ such that $p ( c )=0$
Let $p(y)=y^{2}+y-6$
$\therefore$ $p(-3)=(-3)^{2}+(-3)-6=9-3-6=0$
Hence, $-3$ is a zero of the polynomial $y^{2}+y-6$
Standard 9
Mathematics
