= Mathematics V
{scope}
{title2=A10142W1}
Source: https://www.whatdotheyknow.com/request/bsc_mathematics_prelims_and_part/response/2784209/attach/3/202409%20817%20annex.pdf#page=279[released examination PDF, bundle pages 279–284].
Solutions to all six questions and all optional parts. The surface-<volume> formula in Question 2(b) requires an appropriate enclosing surface and orientation. The symmetry claim in Question 6(a), as printed, also needs the coefficient $b(x,t)$ to be even in $x$; a counterexample to the unrestricted claim is given.
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