10.
已知向量\( \overset{→}{a} \)与\( \overset{→}{b} \)的夹角为\(30^{\circ}\),且\(| \overset{→}{a} |= \sqrt{3} \),\(| \overset{→}{b} |=1\),
\((1)\)求\(| \overset{→}{a} -2 \overset{→}{b} |\)的值
\((2)\)设向量\( \overset{→}{p} = \overset{→}{a} +2 \overset{→}{b} \),\( \overset{→}{q} = \overset{→}{a} -2 \overset{→}{b} \),求向量\( \overset{→}{p} \)在\( \overset{→}{q} \)方向上的投影