Last Activity: 4 Years ago
(i) p(-i) = 3 )( (-i) + 1 .. - 1 + 1= 0 Hence, % = - iis a zero of the polynomial p(z). (ii) p (-) = 5 )( :- 1t = 4 - 1t 0 Hence, z = iis not a zero of the polynomial p(%), (iii) p(l) = 1- 1c 0 and p(- 1) = 1- 1= 0 Hence, z = 1 and % = - 1 are zeroes of the polynomial p(%). (iv) p(- 1) = (-1 + lX- 1- 2) = o and p(2) = (2 + 1) (2 - 2) = 0 Hence, z = - 1 and z = 2 are zeroes of the polynomial p(%). (v) p(O) = 0. Hence, z = 0 is a zero of the polynomial /h). (vi) p (- 7) ;a l •(- 7) + m = - m + m = 0 Hence, % = - 7 is a zero of the polynomial p(%). (ui.i) p (- }a) = 3 )( i- 1c: 1- 1 = 0 and p (rs) = 3 x :- 1 • 4 - 1= 3 O 30 Hence, x = - .J3 is a zero and z • .J3 of the polynomial p(.%). (uiii) p (i) = 2 >< + 1 = l + 1 = 2 0 is not a zero Hence, z = iis not a zero of the polynomial p(x).
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Get your questions answered by the expert for free
Last Activity: 2 Years ago
Last Activity: 3 Years ago