. [-119 Points] DETAILS MY NOTES PRACTICE ANOTHER You are given the following vectors in terms of their components in the basis: B 4 i +3 j +4k 4 i -4-1 j4-2k a. What are the magnitude of the given vectors? use three significant figures if vou enter decimal equivalents. To enter unit vectors, select "Vectors" on the PhysPad that opens when you click on the answer box. Select the "hat" and enter i, j, or k in the provided space using the buttons on the PhysPad. Once entered, you have to hit the right-arrow key or tab to move the cursor out from under the hat. If you do it incorrectly you will see the hat out of position over the vector. Please review your answer before submission. b. 2A-B c. Evaluate the following dot products: