Without using tables, evaluate the following: 3cos68º.cosec 22º-1/2 tan43º .tan47º. tan12º.tan 60º.tan 78º.

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asked Feb 5, 2018 in Mathematics by Kundan kumar (49,132 points) 34 436 1368

Without using tables, evaluate the following:

3cos68º.cosec 22º-1/2 tan43º .tan47º. tan12º.tan 60º.tan 78º.

1 Answer

+1 vote
answered Feb 5, 2018 by Vikash Kumar (144,729 points) 8 11 26
 
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