Asked by khyati11 | 24th Aug, 2008, 04:13: PM
there is no standard method for finding these values using trignometric identities.
if you want to know only values then you can get them using a scientific calculator.
sin 40o = 0.6427
sin 80o = 0.9848
tan 19o = 0.3443
Answered by | 11th Sep, 2008, 12:35: PM
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