Home
Class 12
MATHS
Show that sin 750 ^(@) cos 480^(@) + c...

Show that
`sin 750 ^(@) cos 480^(@) + cos 120 ^(@) cos 60 ^(@)=-1/2`

Promotional Banner

Similar Questions

Explore conceptually related problems

Prove that sin750^(@)cos480^(@)+cos120^(@)cos60^(@)=(-1)/2

Show that sin 1140^(@) cos 390^(@)-cos 780^(@) sin 750^(@) = 1//2 .

Prove that sin 780^(@) sin 480^(@)+cos240^(@). Cos300^(@) = 1/2

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

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

Prove that sin780^(@)*sin480^(@)+cos120^(@)*sin150^(@)=(1)/(2)

sin150^(@).cos120^(@)+cos330^(@)*sin660^(@)=-1

Prove that: sin 150^@ cos 120^@+ cos 330^@ sin 660^@= - 1 .

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