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sin 20^0sin40^0sin60^0sin80^0=3/16...

`sin 20^0sin40^0sin60^0sin80^0=3/16`

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Prove that: sin20^0sin40^0sin60^0sin80^0=3/(16)

Prove that: sin20^0sin40^0sin60^0sin80^0=3/(16)

Prove the following: sin20^@sin40^@sin60^@sin80^@=3/16

For A in R , P.T (i) sinAsin(pi/3+A)sin(pi/3-A)=1/4sin3A (ii) sin20^@sin40^@sin60^@sin80^@=3//16

Prove that: "sin"20^0"sin"40^0"sin"60^0"sin"80^0=3/(16)

Prove that: "sin"20^0"sin"40^0"sin"60^0"sin"80^0=3/(16)

Show that sin20^o sin40^o sin60^o sin80^o =3/16

Prove that: sin10^0sin30^0sin50^0sin70^0=1/(16)dot

Prove that: sin10^0sin30^0sin50^0sin70^0=1/(16)dot

Prove that: sin10^0sin30^0sin50^0sin70^0=1/(16)dot