Question

2 + is a + b + cw a + b + co? 55. The value of b + cw+ ao c + ao that (a) 1 (b) -1 (c) 2 (d) -2 - -​

Answer 1

$\dfrac{a + bw + {cw}^{2} }{b + cw + aw {}^{2} } + \dfrac{a + bw + cw {}^{2} }{c + aw + bw {}^{2} }$

$\mathsf {\cancel\dfrac{a + bw + {cw}^{2}}{b + cw + aw {}^{2} } + \cancel\dfrac {a + bw + cw {}^{2} }{c + aw + bw {}^{2} } }$

$\mathsf{\dfrac {1}{-1}}$

$\mathsf{By\ reversing \ it}$

$\mathsf{\dfrac {1}{1}}$

$\mathsf {(a)\ 1\ is\ the\ correct \ answer.}$

Answer 2

Answer:

$\dfrac{a + bw + {cw}^{2} }{b + cw + aw {}^{2} } + \dfrac{a + bw + cw {}^{2} }{c + aw + bw {}^{2} }$

$\mathsf {\cancel\dfrac{a + bw + {cw}^{2}}{b + cw + aw {}^{2} } + \cancel\dfrac {a + bw + cw {}^{2} }{c + aw + bw {}^{2} } }$

$\mathsf{\dfrac {1}{-1}}$

$\mathsf{By\ reversing \ it}$

$\mathsf{\dfrac {1}{1}}$

$\mathsf {(a)\ 1\ is\ the\ correct \ answer.}$