The curve with equation $y = \frac{6}{{{x^2}}}$ intersects the line $y = x + 1$ at the point $P$.
a) Verify by calculation that the x-coordinate of $P$ lies between 1.4 and 1.6.
b) Show that the x-coordinate of $P$ satisfies the equation
$x = \sqrt {\left( {\frac{6}{{x + 1}}} \right)} $.
c) Use the iterative formula
${x_{n + 1}} = \sqrt {\left( {\frac{6}{{{x_n} + 1}}} \right)} $,
with initial value ${x_1} = 1.5$, to determine the x-coordinate of $P$ correct to 2 decimal places. Give the result of each iteration to 4 decimal places.
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