Write the polar form of the rectangular y = -3 Assume that all variables represent posi Or= Or= 3 sin 0 3 cos 0 O r = - O r = - 3 cos 0 3 sin 0

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A: simplify the following expression (6i-9)(2i-3)   we know that, (a-b)2=a2+b2-2ab and  i2=-1

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