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27. sin 50 sin 70 sin 10 0 sin 70 28. si...

27. sin 50 sin 70 sin 10 0 sin 70 28. sin 100 sin 200 sin 400 sin 50 30L sin 30 gin dy 4 cos

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27.sin50sin70sin100sin7028.sin100sin200sin400sin5030L sin30gindy4cos

Prove 16 sin 10^@ sin 30^@ sin 50^@ sin 70^@=1

Prove that sin10+sin20+sin40+sin50=sin70+sin80

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 30^(@) sin 50^(@) sin 70^(@) sin 90^(@)=

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

Prove that: sin 50^0-sin 70^0+sin 10^0=0

sin50^@-sin70^@+sin10^@ is equal to