Sequence… | NUST Entrance Test Mathematics

The (a)Ms between $\sqrt{2}$ and $3\sqrt{2}$ is

Difficulty: Easy

A:

2\sqrt{2}

B:

-2\sqrt{2}

C:

4\sqrt{2}

D:

\sqrt{2}

If A is the (a)M between the two numbers a and b, then A-a is equal to

Difficulty: Easy

A:

a-A

B:

A+a

C:

A-b

D:

b-A

The (a)M between $a_{n-1}$ and $a_{n+1}$ is:

Difficulty: Easy

A:

a+b/2

B:

a_{n+1}-a_{n-1}

C:

\frac{a_{n+1}-a_{n-1}}{2}

D:

\frac{a_{n-1}-a_{n+1}}{2}

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