Numbers like 1, 4, 9, 16, 25, ... are known as ________.

Perfect cubes

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Perfect squares

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Irrational Numbers

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Decimals

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Solution

The correct option is B
Perfect squares

When an integer is multiplied by itself, it results in a perfect square.

When we square integers like 1, 2, 3, 4, 5, ..., we obtain 1, 4, 9, 16, 25, ... .

Hence, the given numbers which are obtained by squaring the integers are known as perfect squares.

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Similar questions

1, 4, 9, 16, 25

(a) Find x if the following numbers are in A.P

(1) 4, x, 12

(2) 2, (x − 1), 4

(3) 6 − a, x, 6 + a

(b) Find x if the following numbers are in G.P

(1) 16, x, 25

(2) 5, x + 1, 20

(a) 1 and 4

(b) 2 and 8

Verify that (i) A, G, H are in G.P, (ii) A > G > H.

Identify if a given sequence of numbers is an arithmetic progression or not.

a) $8, 17, 26, 35, . . .$

b) $- 4, - 9, - 16, - 25, . .$

Express the following in the form of $a + i b, a, b \in R$

\frac{4 - \sqrt{- 9}}{3 + \sqrt{- 16}} + \frac{3 - \sqrt{- 25}}{4 - \sqrt{- 9}}

Where, $i = \sqrt{- 1} .$ State the values of a and b.

A = {1, \frac{1}{4}, \frac{1}{9}, \frac{1}{16}, \frac{1}{25}}

A

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