This is 6C2
= 6!
-------- = 6*5 / 2*1 = 15
2! 4!
Okay so i cant just post what the answer is i have to type something.
but anyways this is the answer: t= 4.56
The magnitude of YZ is 8.6
<u>Explanation:</u>
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Y( -4, 12)
Z ( 1, 19)
Magnitude of YZ = ?
We know:

On substituting the value we get:

Thus, the magnitude of YZ is 8.6