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Verify whether the following are zeroes of the polynomial, indicated against them.(i) `p(x)=3x+1, x=-1/3` (ii) `p(x)=5x-pi, x=4/5` (iii) `p(x)=x^2-1, x=1,-1`(iv) `p(x)=(x+1)(x+2), x=-1,2` (v) `p(x)=x^2, x=0` (vi) `p(x)=l x+m, x=-m/l` |
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Answer» (i) `p(0) = 3x+1=0` `x=-1/3` correct (ii) `p(0) = 5x - pi = 0` `x= pi/5` incorrect (iii) `p(0) = x^2 - 1=0` `x^2 = 1` `x= -1,1` correct (iv) `p(0) = (x+1)(x-2) = 0` `x=-1,2` correct (v) `p(x) = x^2=0` `x=0 `correct (vi)`p(0) = lx+m=0` `x = -m/l` correct (vii) `p(0) = 3x^2 - 1` `x =+-sqrt( 1/3)` incorrect (viii) `p(0) = 2x+1 = 0` `x= -1/2 ` incorrect |
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