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If 0 lt alpha lt pi/2 is a fixed andgle .If P=(cos theta sin theta) and Q ={cos (alpha- theta),sin (alpha - theta) then Q is obtained from P by |
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Answer» <P>coleckwise rotaion around ORIGIN through an angle `alpha` Now rotation about a line with angle `alpha` is given by `e^(theta) rarr e^(alpha- theta)`.ThereforeQ is obtained fromP by reflection in the line MAKING an anlgle `alpha //2` |
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