How do you find the values of the other five trigonometric functions of the acute angle A with #tanA=5/9#?

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Answer 1 · 2017-10-23T17:28:44

#tanA=5/9#

This corresponds to the following triangle

enter image source here

So,

#sinA=5/sqrt106#

#cosA=9/sqrt106#

#cscA=sqrt106/5#

#secA=sqrt106/9#

#cotA=9/5#