Using trigonometric table evaluate the following: cos 64°42' - si… - Vidyadip

Question

Using trigonometric table evaluate the following:
cos 64°42' - sin 42°20'

✓

Answer

cos 64°42' - sin 42°20'
= 0.4274 - 0.6734
= - 0.2460
= - 0.2460.

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