If the vectors $\overrightarrow { \mathrm { A } }$ and $\vec { B }$ have magnitudes of 10 and 11,respectively,and the scalar product of these two vectors is -100,what is the magnitude of the sum of these two vectors?
A)6.6
B)4.6
C)8.3
D)9.8
E)7.6

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The Answer of If the vectors $\overrightarrow { \mathrm { A } }$ and $\vec { B }$ have magnitudes of 10 and 11,respectively,and the scalar product of these two vectors is -100,what is the magnitude of the sum of these two vectors?
A)6.6
B)4.6
C)8.3
D)9.8
E)7.6

If the Vectors A→\overrightarrow { \mathrm { A } }A And B⃗\vec { B }B

If the Vectors $\overrightarrow { \mathrm { A } }$ And $\vec { B }$