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(Ny sida: a) <math>(-7,-12,13)</math> b) <math>-9</math> c) <math>|\boldsymbol{u}|=\sqrt{14}</math>, <math>|\boldsymbol{v}|=\sqrt{25}</math> d) <math>\theta =\arccos \left( \frac{-9}{\sqrt{14}\s...)
Nuvarande version (7 september 2016 kl. 08.08) (redigera) (ogör)
 
Rad 7: Rad 7:
c)
c)
<math>|\boldsymbol{u}|=\sqrt{14}</math>,
<math>|\boldsymbol{u}|=\sqrt{14}</math>,
-
<math>|\boldsymbol{v}|=\sqrt{25}</math>
+
<math>|\boldsymbol{v}|=\sqrt{22}</math>
d)
d)
-
<math>\theta =\arccos \left( \frac{-9}{\sqrt{14}\sqrt{25}} \right ) </math>
+
<math>\theta =\arccos \left( \frac{-9}{\sqrt{14}\sqrt{22}} \right ) </math>

Nuvarande version

a) \displaystyle (-7,-12,13)

b) \displaystyle -9

c) \displaystyle |\boldsymbol{u}|=\sqrt{14}, \displaystyle |\boldsymbol{v}|=\sqrt{22}

d) \displaystyle \theta =\arccos \left( \frac{-9}{\sqrt{14}\sqrt{22}} \right )