[" Q4: Find the value of "sin(40^(@)+theta)cos(],[10^(@)+theta)-cos(40^(@)+theta)sin(10^(@)+theta)]

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sin(50^(@)+theta)-cos(40^(@)-theta)

Prove that, sin(40^(@)+theta)cos(10^(@)+theta)-cos(40^(@)+theta)sin(10^(@)+theta)=(1)/(2)

Show that: sin (40^(@) + theta) cos (10^(@) + theta) -cos(40^(@) + theta) sin (10^(@) + theta) = (1)/(2)

The value of {cos(40^(@)+theta)-sin(50^(@)-theta)} is

Prove that : sin (40^@+theta)cos (10^@+theta)-cos (40^@+theta) sin (10^@+theta)=1/2 .

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