" 8.Prove that,"sin60*cos30+cos60*sin30=1

Prove that : cos30^(@).cos60^(@)-sin30^(@).sin60^(@)=0

Prove that : cos30^(@).cos60^(@)-sin30^(@).sin60^(@)=0

Find the values of :a. sin60^@ cos30^@+cos60^@sin30^@

The value of (4 tan^2 30+1/4 sin^2 90+ 1/8 cot^2 60+ sin^2 30. cos^2 45)/ (sin60.cos30-cos60.sin30) is/ (4 tan^2 30+1/4 sin^2 90+ 1/8 cot^2 60+ sin^2 30. cos^2 45)/ (sin60.cos30-cos60.sin30) का मान है

Find the value theta in the following :- sin2theta=sin60^@cos30^@-cos60^@sin30^@ .

Prove that ((sin0^@+cos30^@)(sin30^@+tan45^@))/((tan30^@+cot60^@)(sec60^@-cosec90^@))=9/8 .

Prove that : ((sin 0^@+ cos30^@)(sin30^@+tan45^@))/((tan 30^@+ cot 60^@)(sec 60^@-cosec90^@))=9/8 .

Find the value of sin60^(@)cos30^(@)+cos60^(@)sin30^(@) .

Find the value of sin60^(@)cos30^(@)+cos60^(@)sin30^(@) .

Evaluate : (i) sin60^(@)*cos30^(@)-cos60^(@)*sin30^(@) (ii) tan30^(@)*cosec60^(@)+tan60^(@)*sec30^(@) .