On which river is Washington DC situated?
Washington DC is the capital of United States located along Potomac river on the country’s East Coast.
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If cosecA - cotA = x, then the value of x is
If X+Y=3,XY=2, find the value of X3-Y3
National Space Society gave the 2015 Space Pioneer Award to
If a body slides over a surface, the force resisting the motion between them is called ______.
The unit of which physical quantity is not pascal?
Instrument used for measuring specific gravity is called _____.