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SERPSE$1017\mathrm{.}2.$OP$\mathrm{.}009.$MI$.$

Two identical loudspeakers are driven in phase by a common oscillator at $760Hz$ and face each other at a distance of $1\mathrm{.}26m.$ Locate the points along the line joining the two speakers where relative minima of sound pressure amplitude would be expected. $($Take the speed of sound in air to be $343\frac{m}{s}.$ Choose one speaker as the origin and give your answers in order of increasing distance from this speaker. Enter 'none' in all unused answer boxes.$)$

$\backslash$table$[[$Minima$,\backslash$table$[[$Distance from$],[$speaker $(m)$