If x = 1 + a + a2 .......... to ∞ (|a|<1), y = 1 + b + b2 ........

1.	If x = 1 + a + a2 .......... to ∞ (\|a\|<1), y = 1 + b + b2 ......... to ∞(\|b\| < 1), then Z = 1 + ab + a2 b2 + a3 b3..... to ∞ is
Answer» If x = 1 + a + $a^{2}$ .......... to $\infty$ (\|a\|<1), y = 1 + b + $b^{2}$ ......... to $\infty$ (\|b\| < 1), then Z = 1 + ab + $a^{2}$ $b^{2}$ + $a^{3}$ $b^{3}$ ..... to $\infty$ is

If x = 1 + a + a2 .......... to ∞ (|a|<1), y = 1 + b + b2 ......... to ∞(|b| < 1), then Z = 1 + ab + a2 b2 + a3 b3..... to ∞ is

Answer»

If x = 1 + a + $a^{2}$ .......... to $\infty$ (|a|<1), y = 1 + b + $b^{2}$ ......... to $\infty$ (|b| < 1),

then Z = 1 + ab + $a^{2}$ $b^{2}$ + $a^{3}$ $b^{3}$ ..... to $\infty$ is

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If x = 1 + a + a2 .......... to ∞ (|a|&lt;1), y = 1 + b + b2 ......... to ∞(|b| &lt; 1), then Z = 1 + ab + a2 b2 + a3 b3..... to ∞ is

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If x = 1 + a + a2 .......... to ∞ (|a|<1), y = 1 + b + b2 ......... to ∞(|b| < 1), then Z = 1 + ab + a2 b2 + a3 b3..... to ∞ is