class 8 hindi chapter 14 short summary​

Answer:

vitamin A, calcium, phosphorus,vitamin D

Cheese contains calcium and phosphorus, these are minerals that help to strengthen the teeth and gums through a process called re-mineralization. These minerals protect the teeth against harmful acids in the mouth. In addition, because cheese doesn't have color, it wouldn't stain the teeth.

whitening teeth---- This way, Vitamin D is essential to stronger bones and teeth, as well as sturdier and whiter enamels. Getting Vitamin D is easy. Your body is designed to produce this vitamin once your skin is exposed to the sun.

follow @bossygirl

Explanation:

ans a.Mail Merge is a handy feature that incorporates data from both Microsoft Word and Microsoft Excel and allows you to create multiple documents at once, such as letters, saving you the time and effort of retyping the same letter over and over.

ans b.

1. A mail merge is a method of taking data from a database, spreadsheet, or other form of structured data, and inserting it into documents such as letters, mailing labels, and name tags. ... You can also print a set of mailing labels or envelopes by doing a mail merge.
2. A field is an area in a fixed or known location in a unit of data such as a record, message header, or computer instruction that has a purpose and usually a fixed size. ... The records make up the table rows and the fields make up the columns.
3. A database is a data structure that stores organized information. ... For example, a company database may include tables for products, employees, and financial records. Each of these tables would have different fields that are relevant to the information stored in the table.

Answer:

Rolle’s theorem states that if a function f is continuous on the closed interval [a, b] and differentiable on the open interval (a, b) such that f(a) = f(b), then f′(x) = 0 for some x with a ≤ x ≤ b. In other words, if a continuous curve passes through the same y-value (such as the x-axis) twice and has a unique tangent line (derivative) at every point of the interval, then somewhere between the endpoints it has a tangent parallel to the x-axis. The theorem was proved in 1691 by the French mathematician Michel Rolle, though it was stated without a modern formal proof in the 12th century by the Indian mathematician Bhaskara II. Other than being useful in proving the mean-value theorem, Rolle’s theorem is seldom used, since it establishes only the existence of a solution and not its value

Answer:

Rolle's theorem states that

if a function f is

continuous on the closed interval [a, b] and

differentiable on the open

interval (a, b) such that f(a) = f(b), then f′

(x) = 0 for some x with a ≤ x ≤ b.

Step-by-step explanation:

Hope it hepls you

Explanation:

I hope it's help you in advance happy new year