Mathematics
Answer
(i) Given,
sin θ = 0.42
sin 24° 48'= 0.4195 (From tables)
Difference = .0005
Mean difference for 2' = .0005
θ = 24° 48'+ 2' = 24° 50'
Hence, θ = 24° 50'.
(ii) cos θ
cos 24° 48' = 0.9078
Mean difference for 2' = .0002 (to be subtracted)
Therefore,
cos 24° 50' = 0.9078 - 0.0002 = 0.9076
Hence, cos 24° 50' = 0.9076.
(iii) tan θ
tan 24° 48' = 0.4621
Mean difference for 2' = .0007 (to be added)
Therefore,
tan 24° 48' = 0.4621 + 0.0007 = 0.4628
Hence, tan 24° 50' = 0.4628.
Related Questions
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