Home
Class 11
MATHS
sin420^(@)cos390^(@)+cos(-300^(@))sin si...

sin420^(@)cos390^(@)+cos(-300^(@))sin sin(-330^(@))=7

Promotional Banner

Similar Questions

Explore conceptually related problems

Prove that: sin420^(@)cos390^(@)+cos(-300^(@))sin(-330^(@))=1

Find the values: (iii) sin 420^(@) cos 390^(@) - cos(-300^@) sin (-330^@)

sin 420^(@) * cos 390^(@)- cos(-330^(@))* sin(-300^(@))=

Prove that: "sin"420^(@) cos390^(@)+cos(-660^(@))"sin"(-390^(@))=(1)/(2) .

Prove that: sin(-420^(@))cos390^(@)+cos(-660^(@))sin330^(@)=1

Prove that: sin(-420^(@))(cos390^(@))+cos(-660^(@))(sin330^(@))=-1

Prove that sin(-420^(@))(cos390^(@))+cos(-660^(@))(sin330^(@))=-1

What is the value of Sin420^@.cos390^@ + cos(-300^@). sin(-330^@ )?

sin 120^(@) cos 150^(@)- cos 240^(@) sin 330^(@) =