vector algebra

. $find\ the\ magnitude\ of\ \ 2i\ +3j-\sqrt{3}k$  

•  $\sqrt{22}$  

• 10

• 4

• 16

Find the magnitude.

• 4

• 5

• 3

• square root of 5

Tags

CCSS.HSN.VM.A.1

Find the resultant vector.

• <9, 15>

• <7, 17>

• <15, 9>

• <11, 13>

Tags

CCSS.HSN.VM.A.1

CCSS.HSN.VM.B.4

CCSS.HSN.VM.C.10

Vectors a, b, c are defined as:

a = 2i + 5j; b = i - 3j; c = -3i - j. Answer all correct answers

• a + b = 3i + 8j

• a - b = i + 8j

• a + c = -i + 4j

• c - b = -5i + 6j

Tags

CCSS.HSN-VM.B.4A

CCSS.HSN-VM.B.4B

Vector a = 2i + 3j - 5k. What is the value of 3a?

• 3i + 3j - 3k

• 5i + 6j - 8k

• 6i + 9j -15k

• 6i + 6j - 15k

Tags

CCSS.HSN-VM.B.5A

CCSS.HSN-VM.B.5B

Given the vector v = 3i -2j +6 k, the magnitude of v is:

• 36

• 49

• 7

• 6

 $The\ \ dot\ product\ of\ \ i\ -j-k\ and\ i+j+k\ is\ -$  

• -1

• 3

• 1

• 2