Home
Class 12
MATHS
" 2."cos x+cos(120^(@)-x)+cos(120^(@)+x)...

" 2."cos x+cos(120^(@)-x)+cos(120^(@)+x)=0

Promotional Banner

Similar Questions

Explore conceptually related problems

cos120^(@)=

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

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

The period of cosx cos (120^(0) - x) cos (120^(0) + x) is

Prove that (i) sin A+sin (120^(@)+A)+sin(240^(@)+A)=0 (ii) cos A+cos (120^(@)+A)+cos (120^(@)-A)=0

cos (120^(@)) is -

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

Prove the following : cos A + cos (120^@ - A) + cos (120^@+ A) = 0 .

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

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