find the acute angle A to the nearest seond when

(a) sinA= 0.30985 (b) cotA=0.52613 (c) tan A=0.13476

please show work

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- Jul 28th 2007, 12:36 PMharryfind the angle
find the acute angle A to the nearest seond when

(a) sinA= 0.30985 (b) cotA=0.52613 (c) tan A=0.13476

please show work - Jul 28th 2007, 01:50 PMgalactus
Are you allowed to use calculator?. Are you expected to do these manually for some silly reason?.

If you are expected to do these by hand these days, it's silly. Why don't we just revert to slide rules. No one does that in the real world.

$\displaystyle sin^{-1}(0.30985)=$

$\displaystyle cotA\Rightarrow{A=tan^{-1}(\frac{1}{0.52613})}$

etc.