`cos^(2) A + cos^(2) ( 120^(@) + A)+ cos^(2) (120^(@) - A )= `

Similar Questions

Explore conceptually related problems

Prove that cos ^(2) A + cos ^(2) (A + 120^(@)) + cos ^(2) (A -120^(@)) = (3)/(2)

cos (120^(@)) is -

The minimum value of cos^(3) x+ cos^(3) (120^(@) + x) + cos^(3) (120^(@) -x) is

cos A + cos (120 ^(@) - A ) + cos (120 ^(@) + A ) =0

Show that, cos^(2)alpha + cos^(2) (120^(@) - alpha) + cos^(2) (120^(@) + alpha) = 3/2.

cos A + cos (120 ^ (@) + A) + cos (120 ^ (@) - A) =

cos^(3) theta + cos^(3) ( 120^(@) +theta ) + cos^(3) (120^(@) - theta )=

The minimum of cos^(2)(120^(@) + x)+ cos^(2) (120^(@) -x) is

cos theta + cos (120^(@) + theta ) + cos (120^(@) - theta )=