If u=5-2i and v=2-5i, u+v=__ and u-v=

answers for blank one:
10-10i
7+7i
7-7i

answers for blank two:
10+10i
3-3i
3+3i

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

100 points? me its important ‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️