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Show that : (1-sin60^(@))/(cos60^(@))=2-...

Show that : `(1-sin60^(@))/(cos60^(@))=2-sqrt3`.

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Show that : (i) (1-sin60^(@))/(cos60^(@))=(tan60^(@)-1)/(tan60^(@)+1) (ii) (cos30^(@)+sin60^(@))/(1+sin30^(@)+cos60^(@))=cos30^(@)

(log)_(sin30^(@)cos60^(@))=1

Show that : sin 30^(@)=sqrt((1-cos60^(@))/(2))

Show that : cos 60^(@)=2cos^(2)30^(@)-1

Show that : cos30^(@)=sqrt((1+cos60^(@))/(2))

Prove (1-sin60^(@))/(cos60^(@))=(1-tan30^(@))/(1+tan30^(@))

Value of sin60^@//cos60^@

Prove that: (cos30^(@)+sin60^(0))/(1+cos60^(@)+sin30^(@))=(sqrt(3))/(2)

Show that : cos^(2)60^(@)-sin^(2)60^(@)=-sin30^(@)

Given that sin30^(@)=1//2 and cos 30^(@)=sqrt3//2 . Determine the values of sin 60^(@), sin 120^(@), sin 240^(@), sin 300^(@) , and sin (-30^(@)) .