\[\tan 1{}^\circ \tan 2{}^\circ \tan 3{}^\circ \tan 4{}^\circ ........\tan 89{}^\circ =\] [MP PET 1998, 2001; AMU 1999; Pb. CET 1994]

\[\tan 1{}^\circ \tan 2{}^\circ \tan 3{}^\circ \tan 4{}^\circ ........

1.	\[\tan 1{}^\circ \tan 2{}^\circ \tan 3{}^\circ \tan 4{}^\circ ........\tan 89{}^\circ =\] [MP PET 1998, 2001; AMU 1999; Pb. CET 1994]
A.	1
B.	0
C.	\[\infty \]
D.	44228
Answer» B. 0

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\[\tan 1{}^\circ \tan 2{}^\circ \tan 3{}^\circ \tan 4{}^\circ ........\tan 89{}^\circ =\] [MP PET 1998, 2001; AMU 1999; Pb. CET 1994]

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