Determine whether the statement below is true or false. Justify the nswer. The vector is in Rn. if || u ||^2 + || v ||^2 = || u + v ||^2, then u and v are orthogonal. A. The statement is true. By the Pythagoreanâ Theorem, two vectors u and v are orthogonal if and only if ||u+v||^2=||u||2+||v||2.
B. The statement is false. If ||u||^2+||v||^2= ||u+v||^2â, then u and v are orthogonal complements.
C. The statement is false. Two vectors u and v are orthogonal if uâ¢v=0. If ||u||^2+ ||v||^2= ||u+v||^2â, then uâ¢v=1.
D. The statement is true. By the definition of the innerâ product, two vectors u and v are orthogonal if and only if ||u+v||^2= ||u||^2+ ||v||^2.

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.

answer: plz mark me brainliest

7 hours, 0 minutes, 0 seconds

or:  

0.04

total weeks

or:  

0.29

total days

or:  

7.00

total hours

or:  

420.00

total minutes

or:  

25,200.00

total seconds

step-by-step explanation: