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" (a) "tan75^(@)+cot75^(@)...

" (a) "tan75^(@)+cot75^(@)

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tan 75^(@) - cot 75^(@)=

tan 75^(@) - cot 75^@=

Show that tan 75^(@) + cot 75^(@) = 4

Find the values of sin75^(@), cos75^(@), tan75^(@) and cot75^(@) .

Prove that: "tan"A+cotA=2"cosec" 2A and deduce that "tan" 75^(@)+cot 75^(@)=4 .

Show that tan 75^(@) = (sqrt3) +(1 )/( sqrt3 -1) = 2 + sqrt3. Hence deduce that tan 75^(@) - cot 75^(@) = 4 sin 60^(@).

The value of tan75^(@)-cot75^(@) is

Value of tan 75^(@) + cot 75^(@) = ?

Value of tan 75^(@) + cot 75^(@) = ?