Home
Class 10
MATHS
Show that cos 36^(@) cos 54 ^(@) -sin...

Show that
` cos 36^(@) cos 54 ^(@) -sin 36^(@) sin 54^(@) =0`

Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY

    NCERT GUJARATI|Exercise Exercise -11.4|12 Videos

  • TRIGONOMETRY

    NCERT GUJARATI|Exercise OPTIONAL EXERCISE|6 Videos

  • TRIGONOMETRY

    NCERT GUJARATI|Exercise Exercise -11.2|13 Videos

  • TANGENTS AND SECANTS TO A CIRCLE

    NCERT GUJARATI|Exercise Try this|2 Videos

Similar Questions

Explore conceptually related problems

Show that : cos38^(@)cos52^(@)-sin38^(@)sin52^(@)=0

Is it right to say that cos ( 60^(@) + 30 ^(@) ) = cos 60^(@) cos 30 ^(@) -sin 60^(@) sin 30 ^(@)

Prove that, cos105^(@)+cos15^(@)=sin75^(@)-sin15^(@)

Evaluate sin 60^(@) cos 30 ^(@) -sin 30^(@) cos 60 ^(@) , What is the value of sin (60^(@) -30 ^(@) ) What can you conclude ?

cos(47^@) cos (13^@) - sin (47^@) sin(13^@)= .........

sin(12^(@))sin(48^(@))sin(54^(@))= ………..

cos(2pi -x) cos (-x) - sin(2pi +x) sin (-x) = 0

Prove that, cos510^(@)cos330^(@)+sin390^(@)cos120^(@)=-1 .

Evaluate each of the following : sin30^(@)cos45^(@)+cos30^(@)sin45^(@)