Verify the identity.
tan quantity x plus pi divided by two = -cot x
...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 05:30, angelteddy033
Verify the identity.
tan quantity x plus pi divided by two = -cot x
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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