Can u kindly check my {physics} answers?

Question

1) Given F1 = 6 Newtons and F2=4 Newtons. Direction of the forces are not specified.

a. What is maximum value of R? = 10

b. What must be the angle of two forces to get maximum R? =180

c. What is minimum value of R? =0

d. What angle between two forces to get minimum R? = 0

e. As you decrease angle between two vectors, what happens to R? = decreases

Answer 1

a. Same direction R=F1+F2=6N+4N=10N

b. Angle = 0

c. Opposite direction R=F1-F2=6N-4N=2N

d. Angle = 180

e. Increases.