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[" (A) "cos60^(@)" (B) "sin60^(@)],[" (A...

[" (A) "cos60^(@)" (B) "sin60^(@)],[" (A) "+B=sqrt(3)" and "tan(A-B)=(1)/(sqrt(3)),0^(@)B" ,find "A" and "B" ."]

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

cos 60^(@) sin 30^(@) +cos 30^(@) sin 60^(@)=

(tan60^@)/(sin60^@+cos30^@)

cos45^(@)cos60^(@)-sin45^(@)sin60^(@)=(sqrt(3)-1)/(2sqrt(2))

cos45^(@)cos60^(@)-sin45^(@)sin60^(@)=(sqrt(3-1))/(2sqrt(2))

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

co60^(@)sin30^(@)+cos30^(@)sin60^(@) =___.

Evaluate : cos60^(@)cos30^(@)+ sin 60^(@)sin30^(@)

cos30^(@)sin60^(@)+cos60^(@)sin30^(@)= ……………………