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cos10*cos30+cos20*cos70=(sqrt(3))/(8)...

cos10*cos30+cos20*cos70=(sqrt(3))/(8)

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Prove that cos10^@cos30^@cos50^@cos70^@=3/(16) .

Show that cos10^o cos30^o cos50^o cos70^o =3/16

Prove the following : cos 10^@ cos 50^@ cos 70^@ = sqrt3/8 .

Prove that: cos 10^0cos30^0cos 50^0cos 70^0=3/(16)

Prove that: cos 10^0cos30^0cos 50^0cos 70^0=3/(16)

Prove the following : cos10^@.cos30^@.cos50^@.cos70^@ = 3/16

Prove that cos10^(@)cos30^(@)cos50^(@)cos70^(@)=(3)/(16)

Prove that cos10^(@)cos30^(@)cos50^(@)cos70^(@)=(3)/(16)

Prove that: cos10^(0)cos30^(@)cos50^(@)cos70^(@)=(3)/(16)

cos10^(0)cos30^(0)cos50^(@)cos70^(0)