tan^{1}(tan 7) =
a:72Î
b:2Î 7
c:7
Please give the reason behind the answer.

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1 Answers
Manish Shankar
·20140604 03:44:15
tan^{1}7=tan^{1}(2Ï€7)=72Ï€
or in other way.
7 lies in I quadrant and so tan 7 is positive. Also we have to bring the angle in between Ï€/2 and Ï€/2
 Raunaq Saha okay so that means sin^(1)[sin 5] = 2pi5 but in the book its written 52pi
which one is correct ?Upvote·0· Reply ·20140604 05:29:25
 Himanshu Giria 52pi is right coz 5 is in 4th quad. were sin1 is ve ...