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[" 2Show that: "],[[" (1) "tan48^(@)tan2...

[" 2Show that: "],[[" (1) "tan48^(@)tan23^(@)tan42^(@)tan67^(@)=1,],[" (ii) "cos38^(@)cos52^(@)-sin38^(@)sin52^(@)=0]]

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Show that : cos38^(@)cos52^(@)-sin38^(@)sin52^(@)=0

Show that : tan48^(@)tan23^(@)tan42^(@)tan67^(@)=1

Shown that : tan48^(@)tan23^(@)tan42^(@)tan67^(@)=1

Shown that : tan48^(@)tan23^(@)tan42^(@)tan67^(@)=1

show that tan48^(@).tan23^(@)*tan42^(@)*tan67^(@)=1

Show that tan48^(@) tan 23^(@) tan 42^(@) tan 67^(@) =1 .

Show that tan48^(@) tan 23^(@) tan 42^(@) tan 67^(@) =1 .

Show that:(i) tan48^@tan23^@tan42^@tan67^@=1

Show that tan48^(@)tan16^(@)tan42^(@)tan74^(@)=1