Answers

2015-05-07T09:44:15+05:30
To solve tan10+tan70-tan50:
first of all , note all the decimal numbers of given t-ratios.
tan10=0.64 
tan 70=1.22 
tan 50=0.27 

then it would be: 
0.64+1.22-0.27 
=1.59
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2015-05-07T09:52:44+05:30
It would be 1.59 because
 tan10=0.64 
tan 70=1.22 
tan 50=0.27 
                        therefore 0.64-0.27+1.22 
                         =1.59
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