Another quick geometry question! Thanks!
1 answer:
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Define unit vectors along the x-axis and the y-axis as 
respectively.
Then the vector from P to Q is
In component form, the vector PQ is (-8,5).
The magnitude of vector PQ is
√[(-8)² + 5²] = √(89) = 9.434
Answer:
The vector PQ is (-8, 5) and its magnitude is √89 (or 9.434).
Then the vector from P to Q is
In component form, the vector PQ is (-8,5).
The magnitude of vector PQ is
√[(-8)² + 5²] = √(89) = 9.434
Answer:
The vector PQ is (-8, 5) and its magnitude is √89 (or 9.434).
Answer:
77. Proved
78. Proved
79. Proved.
80. Proved.
Step-by-step explanation:
77. Left hand side
=
=
=
{Since we know, }
=
= Right hand side (Proved)
78. Left hand side
=
=
{Since }
=
= Right hand side (Proved)
79. Left hand side
=
=
{Since }
=
= Right hand side
80. Left hand side
=
=
{Since }
=
=
= Right hand side. (Proved)