Answer:
Step-by-step explanation:
Suppose x and y are nonzero vectors in an inner product space.
Let us assume that x and y are orthogonal
i.e. innter product is 0.
This implies dot product of x and y is 0
Then x.y =0
i.e. 
Proved
Converse part:
Let 
Square also would be equal

Hence inner product of x and y is 0
Answer:
<u>128x^2+424x-279 </u>
Step-by-step explanation:
Use the distributive property to get the answer
Use this for refrence https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-ditributive-property/a/distributive-property-explained
Hope this Helps!

The final result is,
C) 0 only.
We gathered the solutions of b = 0, -4.
b = -4 was not true so we had to remove it from the solution set, and we are left with b = 0 now. You can check this answer by substituting 0 in for b in the original equation. You should get 1 = 1, which is the correct answer.
No because to get a proportional relationship you have to add the same number to all x to get y