Question 7 Grade 12 Mathematics P2 September 2020 on Trigonometry / 3-D Triangles / Area Rule / Cosine Rule / Sine Rule
0:00 7.1 Determine the size of LN̂M in terms of p
2:11 7.2 Prove that LM = dsin2p/sinp
5:27 7.3 Hence, show that h = 2d cos p tanq v
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