To prove: The formula ( u → × v → ) × w → = ( u → ⋅ w → ) v → − ( v → ⋅ w → ) u → and u → × ( v → × w → ) = ( u → ⋅ w → ) v → − ( u → ⋅ v → ) w → for the vectors u → = 2 i → , v → = 2 j → , w → = 2 k → by evaluating both the sides and comparing the results.
To prove: The formula ( u → × v → ) × w → = ( u → ⋅ w → ) v → − ( v → ⋅ w → ) u → and u → × ( v → × w → ) = ( u → ⋅ w → ) v → − ( u → ⋅ v → ) w → for the vectors u → = 2 i → , v → = 2 j → , w → = 2 k → by evaluating both the sides and comparing the results.
Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.
Chapter 11, Problem 17AAE
(a)
To determine
To prove: The formula (u→×v→)×w→=(u→⋅w→)v→−(v→⋅w→)u→ and u→×(v→×w→)=(u→⋅w→)v→−(u→⋅v→)w→ for the vectorsu→=2i→,v→=2j→,w→=2k→ by evaluating both the sides and comparing the results.
(b)
To determine
To prove: The formula (u→×v→)×w→=(u→⋅w→)v→−(v→⋅w→)u→ and u→×(v→×w→)=(u→⋅w→)v→−(u→⋅v→)w→ for the vectors u→=i→−j→+k→,v→=2i→+j→−2k→,w→=−i→+2j→−k→ by evaluating both the sides and comparing the results.
(c)
To determine
To prove: The formula (u→×v→)×w→=(u→⋅w→)v→−(v→⋅w→)u→ and u→×(v→×w→)=(u→⋅w→)v→−(u→⋅v→)w→ for the vectors u→=2i→+j→,v→=2i→−j→+k→,w→=i→+2k→ by evaluating both the sides and comparing the results.
(d)
To determine
To prove: The formula (u→×v→)×w→=(u→⋅w→)v→−(v→⋅w→)u→ and u→×(v→×w→)=(u→⋅w→)v→−(u→⋅v→)w→ for the vectors u→=i→+j→−2k→,v→=−i→−k→,w→=2i→+4j→−2k→ by evaluating both the sides and comparing the results.
Find the differential of the function f(x, y) = −8x√y at the point (1,3) using Ax = 0.25 and
Ay = -0.15.
dz
Now find Az and compare it to your answer above
Az =
Hint: If entering a decimal, round to at least 5 places
please dont use chat gpt i need to under
Chris Lynch plans to invest $200 into a money market account. Find the interest rate that is needed for the
money to grow to $1,800 in 12 years if the interest is compounded
quarterly.
The rate is %. (Round to the nearest percent.)