Question: how do i solve this math qns? Carple Nurtiberi ). Chatlate Lenducht-D 5 (a) It is given that z = ( V3-1) (-1+1) 2: By

how do i solve this math qns?

Carple Nurtiberi ). Chatlate Lenducht-D 5 (a) It is given that z = ( V3-1) (-1+1) 2: By finding the modulus and argument of z . find an exact expression for z in cartesian form a + ib. [4] Istepit (b) The equation x -2x +ax +6x+b=0 has a root x =cid, where a. b, c and d are real constants and d 70. (i) State the possible number of real root(s) the equation can have. (ii) find the values of a and b and all the roots of this equation in exact form. [5] (iii) deduce the roots of the equation w - 2iw- aw -6iw + b=0 in exact form. 121 ADAQUA

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