Express the following in terms of angles between 0° and 45°: cose… - Vidyadip

Question

Express the following in terms of angles between 0° and 45°:
cosec68° + cot72°

✓

Answer

cosec68° + cot72°
= cosec(90 - 22)° + cot(90 -18)°
= sec22° + tan18°

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