Question

144:28
Submi
Single Correct Answer Type
Q. 18 of 75
Mark for review ☆
IS
P=(0,1,2), Q =(4,-2,1), O=(0,0,0)
then ZPOQ=​

Answer 1

The three points are as given.

The line OP is given by (0,1,2)

The line OQ is given by (4,−2,1)

So, the angle POQ will be obtained by the dot product of OP and OQ.

cosθ=

∣OP∣×∣OQ∣

OP.OQ

cosθ=0

∴θ = 90°

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