16. A topological space (X, t) is Lindelöf if every open cover of X has a finite or countably infinite subcover. Prove that the property of being Lindelöf is a topological property.

Q: 21. Find each of the shaded areas under the standard normal curve. а. 1.25

A:

Q: 1.5 6

A: We will write x as a linear combination of a and b as follows :

Q: 3 2 2 y

A:

Q: 6.1 4

A: Given that  The vector

Q: 1805

A:

Q: 5 and 2/3 feet + 4 and 1/6 feet

A: Answer  - 5 and 2/3 feet +4 and 1/6 feet

Q: 10 x 10

A: We have to multiply 10×10 When we multiply 10 into 10, we will get 100. Therefore, 10×10=100

Q: Simplify. 7/16-V54

A:

Q: 214 8.

A:

Q: Luestic Given the circumference of the circle and the measure of the central angle ACB, find the…

A:

Q: Find the length of H H. 33° 17° 35-

A: The given problem is solved below in detail.

Q: t. 6 G

A: In triangle ABC The length of side AC=6 units. m∠B=60∘