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We know that 1. sin(a+b) = sin(a)cos(b)+sin(b)cos(a) and 2. sin(a-b) = sin(a)cos(b)-sin(b)cos(a) Add equations 1. and 2. sin(a+b)+sin(a-b) = 2sin(a)cos(b)+sin(b)cos(a)-sin(b)cos(a) = 2sin(a)cos(b) Let x=a...

From the work experience that I have undertaken I have learnt more about the day to day realities of life as a doctor. I have learnt that being a doctor requires good communication and team working skills...

"It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife." 

The sentence introduces one of the main themes of the plot, the pu...

Williams employs plastic theatre as a means of giving physical onstage presence to abstract concepts in order to better clarify for the audience their meaning and significance within 'A Streetcar Named De...

For the line passing through A and B: m = (y2-y1)/(x2-x1) = (-6-4)/(7-3) = -5/2

For the perpendicular line: m = -1/(-5/2) = 2/5 

y - y1 = m*(x - x1)  >>  y - 4 = (2/5)*(x - 3)  >>...