Prove that (1)`cos36^@cos72^@cos108^@cos144^@=1/16` (2) Show that `4sin27^@=sqrt(5+sqrt5)-sqrt(3-sqrt5)`

Prove that 4sin27^@=sqrt(5+sqrt5)-sqrt(3-sqrt5)

Prove that (1)cos36^(@)cos72^(@)cos108^(@)cos144^(@)=(1)/(16)(2) Show that 4sin27^(@)=sqrt(5+sqrt(5))-sqrt(3-sqrt(5))

Prove that cos36^(@)cos72^(@)cos108^(@)cos144^(@)=1//16 .

Prove that cos36^0cos72^0cos108^0cos144^0=1/(16)dot

Prove that cos36^0cos72^0cos108^0cos144^0=1/(16)dot

Prove that: cos36^(@)cos72^(@)cos108^(@)cos144^(@)=(1)/(16)

Prove that cos36^(@)cos72^(0)cos108^(0)cos144^(0)=(1)/(16)

Prove that cos 36^(@) cos 72^(@) cos 108^(@) cos 144^(@)=1//16 .

Prove that cos 36^(@) cos 72^(@) cos 108^(@) cos 144^(@)=1//16 .