If tan2 . tan 4 = 1, then the value of tan 3 is – McqOptions

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1.	If tan2 . tan 4 = 1, then the value of tan 3 is
A.
B.	<span style=" text-decoration: overline;">AAAA</span>
C.	0
D.	1
E.	<table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2"></td></tr><td align="center"> <span style=" text-decoration: overline;">3</span></td></table>
Answer» D. 1

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