QCEVault

Vectors in three dimensions — Question 133

Original QCE Vault practice · 1 mark

Q133 · Practice questionTechnology-activeComplex familiar1 mark

QUESTION 133

For a=(1,2,2),b=(2,0,1)a=(1,2,2), b=(2,0,1), the scalar projection of aa onto bb is
(A)
45\frac{4}{5}
(B)
45\frac{4}{\sqrt{5}}
(C)
54\frac{\sqrt{5}}{4}
(D)
54\frac{5}{4}
Question linkSyllabus coverage

Related questions

  1. Q3 · Original practice · 1 mark
    Original Specialist Mathematics practice question 3: line and plane
    Vectors in three dimensions
  2. Q8 · Original practice · 5 marks
    Original Specialist Mathematics practice question 8: line-plane geometry
    Vectors in three dimensions
  3. Q24 · Original practice · 6 marks
    Let a=(4,−2,4)\mathbf a=(4,-2,4) and b=(1,2,2)\mathbf b=(1,2,2).
    Vectors in three dimensions
  4. Q26 · Original practice · 6 marks
    The sphere x2+y2+z2=9x^2+y^2+z^2=9 is intersected by the line r=(0,0,4)+t(1,0,−1).\mathbf r=(0,0,4)+t(1,0,-1).
    Vectors in three dimensions