What does $tan(12arcsec(1))+9cos(arc cot(4))$ equal?

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Answer 1 · 2016-04-26T08:54:00

$36/sqrt 17$

$tan (12 arcsec 1)=tan (12(0)=0$

#9 cos(arc cot 4)=9 cos arc cos.(4/sqrt 17)=9(4/sqrt 17)=36/sqrt 17#.

So, the sum is $36/sqrt 17$ .

What does tan(12arcsec(1))+9cos(arc cot(4))tan(12arcsec(1))+9cos(arc cot(4)) equal?