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sin^2 40 + sin^2 50...

`sin^2 40 + sin^2 50`

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What is sin^2 50^@ + sin^2 40^@ equal to?

Prove the following : sin 10^@ + sin 20^@ + sin 40^@ + sin 50^@ = sin 70^@+ sin 80^@ .

Prove that sin 10° + sin 20° + sin 40° + sin 50°=sin 70° + sin 80

Prove that sin 10° + sin 20° + sin 40° + sin 50°=sin 70° + sin 80

sin 10^(@)+sin 20^(@) + sin 40 ^(@) + sin 50 = A) sin 15^(@) +sin 75^(@) B) cos 15^(@) + cos75^(@) C) sin 70^(@) + sin 80^(@) D) cos 70^(@) + cos 80^(@)

sin 10^(@) + sin 20^(@) + sin 40^(@) + sin 50^(@) - sin 70^(@) - sin 80^(@) =

Prove that sin10^(@) + sin20^(@) + sin 40^(@) + sin 50^(@) = sin 70^(@) + sin 80^(@)

Prove that : sin 10^(@) + sin 20^(@) + sin 40^(@) + sin 50^(@) = sin 70^(@) + sin 80^(@).

sin ^2 50^@+cos ^2 50^@ =?

The value of (sin^2 60^@- cos^2 45^@+ sec 60^@+ cos^2 40^@+ cos^2 50^@) is equal to: (sin^2 60^@- cos^2 45^@+ sec 60^@+ cos^2 40^@+ cos^2 50^@) का मान किसके बराबर है?