2. ĐỊNH THỨC 2.1. Giải phương trình: 2 3 1 1 2 4 8 0 1 3 9 27 1 4 14 64
1 answer:
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Answer:
s= 15 (nearest integer), 14.8 (to nearest 10ths)
Step-by-step explanation:
here you need to apply the cosine rule,
substituting the values,
u= 13, t=5 and angle S as 60 and solving will give you the answer 14.76 (2 dp)