Perimeter = x + 5x - 2 + 7x - 4
= 13x - 6 meters answer
Answer:
I think it's
Step-by-step explanation:
73.70×3
221.1
Answer:
0.72
Step-by-step explanation:
Answer:
Step-by-step explanation:
- cotx cos x - cot x = 0
- cotx( cosx - 1) = 0
1. <u>cotx = 0</u>
- x = π/2 + πn
- In the interval [0, 2π] we have π/2 and 3π/2
2. <u>cosx = 1</u>
- x = 0 + 2πn
- In the given interval we have 0 and 2π
<u>So the solution set is:</u>