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" 152.Prove that "tan70^(@)=2tan50^(@)+t...

" 152.Prove that "tan70^(@)=2tan50^(@)+tan20^(@)

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Prove that: tan70^(@)=tan20^(@)+2tan50^(@)

tan20^(@)+2tan50^(@)=

Prove that tan70^(@)-tan20^(@)=2tan50^(@) .

Prove that tan40^(@) + 2tan10^(@) = tan50^(@)

Prove that, tan 70^(@) = 2tan 50^(@) + tan 20^(@)

tan10^(@)-tan50^(@)+tan70^(@)

tan10^(@)-tan50^(@)+tan70^(@)=?

Prove that tan 50^(@) -tan40^(@)-2tan10^(@) .

Prove that, tan 70^(@) - tan 50^(@) + tan 10^(@) = sqrt3