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OpenStudy (anonymous):
z=1-cosθ+isinθ,then |z|=
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ganeshie8 (ganeshie8):
z = a+ib |z| = sqrt(a^2 + b^2)
ganeshie8 (ganeshie8):
z=1-cosθ+isinθ a = ? b = ?
OpenStudy (anonymous):
then
ganeshie8 (ganeshie8):
z=1-cosθ+isinθ notice that `1-cosθ` is not attached to `i`, so it becomes the real part
ganeshie8 (ganeshie8):
a = 1-cosθ b = sinθ
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ganeshie8 (ganeshie8):
|z| = sqrt(a^2 + b^2) = ?
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