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 BANGLISH|Exercise Exercise -11.4|12 Videos

  • TRIGONOMETRY

    NCERT BANGLISH|Exercise OPTIONAL EXERCISE|6 Videos

  • TRIGONOMETRY

    NCERT BANGLISH|Exercise Exercise -11.2|13 Videos

  • TANGENTS AND SECANTS TO A CIRCLE

    NCERT BANGLISH|Exercise Try this|5 Videos

Similar Questions

Explore conceptually related problems

Show that 1+cos 56^(@)+ cos 58^(@)-cos66^(@)=4 cos 28^(@) cos 29^(@) sin 33^(@)

Prove that cos 10^(@) cos20^(@) + sin 45^(@) cos145^(@) + sin 55^(@) cos245^(@) = 0

Value of sin36^(@) is

Prove that sin 80^(@) cos20^(@) + sin45^(@) cos145^(@)+sin 55^(@) cos245^(@) = 0

Show that |{:(cos 15^@ ,sin 15^@),(sin 75^@,cos 75^@):}|=0

Prove that cos32^(@) sin20^(@) + cos144^(@) cos2^(@) + sin68^(@) cos56^(@) = 0

Show that |[cos 15^@ sin 15^@],[sin 75^@ cos 75^@]| =0

Prove that, cos 67^(@)24' cos7^(@)24' + cos82^(@)36' cos22^(@)36' =1/2

The value of 16 sin 144^(@) sin 108^(@) sin 72^(@)sin 36^(@) is-

The valud of sin 12^(@) sin 48^(@) sin 54^(@) is equal to-