Answer:
k = 6 : 5 : 4
Step-by-step explanation:
BC : AB : AC = 18 : 15 : 12 = 6 : 5 : 4
EF : DE : DF = 12 : 10 : 8 = 6 : 5 : 4
Answer:
Step-by-step explanation:
let cos^{-1}x=t
cos t=x
when x=1,cos t=1=cos 0
t \rightarrow 0

Answer:
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Answer:
(4*10)+(7*1/100)=40+7/100=40 7/100
Step-by-step explanation: