√(-a cos alpha-a sin alpha)^2 + (b sin alpha-(-b cos alpha))^2

1.	√(-a cos alpha-a sin alpha)^2 + (b sin alpha-(-b cos alpha))^2
Answer» Or, a^2 + b^2 + 2SinaCosa( a^2 - b^2)But both are same (a^2 + b^) 1 - 4sin^2a cos^2aWhere a is alpha

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