Question

Find the value of
$tan {\sqrt{3} }^{ - 1} \: - \cot( - \sqrt{3} ) {}^{ - 1}$
​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services. Recreation—many recreational pursuits rely on our unique biodiversity , such as birdwatching, hiking, camping and fishing.