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Magnitude of a vector `Q` is 5 and magnitude of its `y`-component is 4. So, the magnitude of the `x`-component of this vector
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Magnitude of a vector `Q` is 5 and magnitude of its `y`-component is 4. So, the magnitude of the `x`-component of this vector is
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(a) 8 (b) 3 (c) 6 (d) 9
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