Answer: D. 5
Step-by-step explanation:
In the given figure , we have give a trapezioid ABCD with parallel sides BC= 3.3 units and AD= 6.7 units.
Also, E and F appears as the mid points of non parallel sides AB and CD and parallel to the bases BC and AD.
⇒ EF would be the median of trapezioid ABCD.
Also, we know that , the length of the median of a trapezoid equals to one-half the sum of the lengths of the two bases.
i.e. length of EF =
i.e. length of EF =
i.e. length of EF =
i.e. length of EF = 5 units.
Answer:
∇ × F = [xsin(xy)+xsin(xz)]i - ysin(xy)j - zsin(xz)k
Step-by-step explanation:
Given the vector field,
f(x, y, z) = cos(xz)j − cos(xy)k
Curl is represented as ∇×
Curl of the field F given will be expressed as ∇ × F
The symbol ∇ known as nabla is a 3-dimensional vector expressed as
∇ = (δ/δx)i + (δ/δy)j + (δ/δz)k
∇ × F = {(δ/δx)i + (δ/δy)j + (δ/δz)k}× 0i + cos(xz)j − cos(xy)k
Curl of the function can be gotten by finding the cross product as shown in the attachment.
