# Scalar product

Calculate the scalar product of two vectors: (2.5) (-1, -4)

Result

s =  -22

#### Solution: Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments: Be the first to comment! #### To solve this example are needed these knowledge from mathematics:

Two vectors given by its magnitudes and by included angle can be added by our vector sum calculator.

## Next similar examples:

1. Scalar dot product Calculate u.v if |u| = 5, |v| = 2 and when angle between the vectors u, v is: a) 60° b) 45° c) 120°
2. Product Result of the product of the numbers 1, 2, 3, 1, 2, 0 is:
3. Geometric progression 2 There is geometric sequence with a1=5.7 and quotient q=-2.5. Calculate a17.
4. Virus We have a virus that lives one hour. Every half hour produce two child viruses. What will be the living population of the virus after 3.5 hours?
5. Points collinear Show that the point A(-1,3), B(3,2), C(11,0) are col-linear.
6. Geometric progression Fill 4 numbers between 4 and -12500 to form geometric progression.
7. Multiples Find all multiples of 10 that are larger than 136 and smaller than 214.
8. Vector Determine coordinates of the vector u=CD if C[19;-7], D[-16,-5].
9. Add vector Given that P = (5, 8) and Q = (6, 9), find the component form and magnitude of vector PQ.
10. Coordinates of vector Determine the coordinate of a vector u=CD if C(19;-7) and D(-16;-5)
11. Vector 7 Given vector OA(12,16) and vector OB(4,1). Find vector AB and vector |A|.
12. AS sequence In an arithmetic sequence is given the difference d = -3 and a71 = 455. a) Determine the value of a62 b) Determine the sum of 71 members.
13. Six terms Find the first six terms of the sequence a1 = -3, an = 2 * an-1
14. Theorem prove We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
15. Equation Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
16. Fish tank A fish tank at a pet store has 8 zebra fish. In how many different ways can George choose 2 zebra fish to buy?
17. Quadratic equation Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.