A and B are 2 non-zero constant vectors and |B| =1. If the angle between them is pi/4, find the limit of (|A+xB|-|A|)/x as x approaches 0.(adsbygoogle = window.adsbygoogle || []).push({});

I'm stuck at this question. I've tried using dot product and vector product. But...I don't see the connection ... Any useful hints would be helpful.

Thanks.

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# Limit question involving vectors

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