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Question
Use tables to find the acute angle θ, if the value of sin θ is 0.6525
Solution
From the tables, it is clear that sin 40° 42' = 0.6521
sin θ − sin 40° 42' = 0.6525 ; 0.6521 = 0.0004
From the tables, diff of 2' = 0.0004
Hence, θ = 40° 42' + 2' = 40° 44'
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