Find the distance between the points (acosa,asina) and (-acosa,asina)
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Hi Mate!!!
Distance between them = √[ { -a Cos ( a ) - a Cos ( a ) } ² + { a Sin ( a ) - a Sin ( a ) } ²
=>. √ ( 4a² Cos² ( a ) )
=>. 2a√ ( Cos² ( a ) )
Distance between them = √[ { -a Cos ( a ) - a Cos ( a ) } ² + { a Sin ( a ) - a Sin ( a ) } ²
=>. √ ( 4a² Cos² ( a ) )
=>. 2a√ ( Cos² ( a ) )
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