The sum `1/(sin 45^@sin 46^@) + 1/(sin 47^@sin 48^@)+1/( sin 49^@ sin 50^@)+........+1/(sin 133^@sin 134^@)` is equal to

The sum 1/(sin4 5^(@)sin4 6^(@))+1/(sin4 7^(@)sin4 8^(@)) +1/(sin 49^@ sin 50^@)+...+1/(sin 133^@ sin 134^@) is equal to

The sum 1/(sin4 5^(@)sin4 6^(@))+1/(sin4 7^(@)sin4 8^(@)) +1/(sin 49^@ sin 50^@)+...+1/(sin 133^@ sin 134^@) is equal to

The sum (1)/(sin45^(@)sin46^(@))+(1)/(sin47^(@)sin48^(@))+(1)/(sin49^(@)sin50^(@))+...+(1)/(sin133^(@)sin134^(@)) is equal to

the sum (1)/(sin45^(@)sin46^(@))+(1)/(sin47^(@)sin48^(@))+(1)/(sin49^(@)sin50^(@))+...+(1)/(sin133^(@)sin134^(@)) is equal to

sin 12^(@) sin 48^(@) sin 54^(@) is equal to

sin 12^(@) sin 48^(@) sin 54^(@) is equal to

sin 12^(@) sin 48^(@) sin 54^(@) is equal to

√(1+sin θ) ( 1 - sin θ) is equal to

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

sin 12 ^(@) sin 48^(@) sin 54 ^(@) = (1)/(8).