Mathematics · Oct / Nov 2025 · Paper 41 · Question 29
0580
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The question as text
NOT TO SCALE Ĭ C Ñ A yã 38ã 97ã 14 cm 13 cm 10 cm
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29(a)[3]
63.0 or 63.02 to 63.03 [3]
10 2 + 14 2 − 13 2
M2 for [cos y =] oe × × 2 10 14
or M1 for 132 = 102 + 142 – 2 × 10 × 14 × cos y oe
29(b)[5]
15.1 or 15.13 to 15.14 [5]
M2 for [AD] = 14sin38 sin97 AD 14 =
or M1 for oe sin38 sin97
M2 for 102 + (their AD)2 – 2 × 10 × their AD × cos(their y + 180 – 97 – 38)
or M1 for angle BAD = their y + 180 – 97 – 38 soi
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