Math, asked by latha94, 1 year ago

Logtan1 +logtan2+......+logtan89

Answers

Answered by pal69

6

logtan(90-89)+logtan(90-88)+........+logtan89

=

logcot89+logcot88+.....

=log(tan89^-1)+log(tan88^-)+.....

=-logtan89-logtan88-......+log tan89

=0

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