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Identifying Perfect Square Numbers by Observing Their Last Digit

Find the squa...

Question

Find the squares of these numbers:

(i)

(ii)

(iii)

(iv)

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Solution

(i)

(ii)

(iii)

(iv)

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Similar questions

Q. Evaluate:
(i) 4⁻³
(ii)

{(\frac{1}{2})}^{- 5}

{(\frac{4}{3})}^{- 3}

{(- 3)}^{- 4}

{(\frac{- 2}{3})}^{- 5}

Find the squares of these numbers:

(i) 30

(ii) 400

(iii) 7000

(iv) 6 × 10²⁵

Q. Find the square root of the following complex numbers:
(i) −5 + 12i
(ii) −7 − 24i
(iii) 1 − i
(iv) −8 − 6i
(v) 8 −15i
(vi)

- 11 - 60 \sqrt{- 1}

1 + 4 \sqrt{- 3}

(viii) 4i
(ix) −i

Find the square root of the following complex numbers :

(i) -5 + 12 i

(ii) -7 - 24i

(iii) 1 - i

(iv) - 8 - 6i

(v) 8 - 15i

(vi) -11 - 64 $\sqrt{- 1}$

(vii) 1 + 4 $\sqrt{- 3}$

(viii) 4i

(ix) - i

Can’t you do these in your head?

(i)

(ii)

(iii)

(iv)

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Identifying Perfect Square Numbers by Observing Their Last Digit

Standard VII Mathematics

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