" ii) "(tan60^(@)-tan30^(@))/(1+tan60^(@)tan30^(@))+cos60^(@)cos30^(@)+sin60^(@)sin30^(@)

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Calculate : (tan60^(@)-tan30^(@))/(1+tan60^(@) tan30^(@))+cos60^(@) cos30^(@)+sin60^(@) sin 30^(@) .

(tan60^(@)-tan30^(@))/(1+tan60^(@)tan30^(@))=tan30

Evaluate (tan60^(@)-tan30^(@))/(1+tan60^(@)tan30^(@)) .

Find the value of: (tan 60^@- tan 30^@)/(1+ tan60^@ tan 30^@)+cos 60^@ cos30^@+ sin 60^@ sin30^@ .

"(1) "sin60^(@)cos30^(@)+sin30^(@)cos60^(@)

Find the value : (tan^2 60^@+tan30^@)/(1+tan^2 60^@+tan30^@)+cos 60^@ cos30^@ -sin60^@ - sin30^@

(tan 60^(@) - tan 30^(@))/(1 + tan 60^(@) tan 30^(@)) equal

Show that (tan 60^(@)-tan30^(@))/(1+tan 60^(@) tan 30^(@))= tan 30^(@) .

If it right to say cos(60^(@)+30^(@))=cos60^(@)cos30^(@)-sin60^(@)sin30^(@)