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If A=[(0,-tan alpha),(2,tan alpha),(2,0)...

If `A=[(0,-tan alpha),(2,tan alpha),(2,0)] and I` is `2 xx 2` unit matrix, then `(I-A)[(cos alpha,sin alpha),(sin alpha, sin alpha)]` is (a) `-I+A` (b) `I-A` (c) `-I-A` (d) non of these

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