Using Identities- Evaluate- 78 - 82

→ 78× 82 =(80 2)(80+2) =80^2 2^2 =6400 4 =6396 ...

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Using Identit...

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Using Identities, Evaluate:
$78 \times 82$

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78 \times 82

78 \times 82

78 \times 82

Using identities, evaluate.

(i) 71² (ii) 99² (iii) 102² (iv) 998²

(v) (5.2)² (vi) 297 × 303 (vii) 78 × 82

(viii) 8.9² (ix) 1.05 × 9.5

71^{2}

99^{2}

102^{2}

998^{2}

{5.2}^{2}

297 \times 303

78 \times 82

{8.9}^{2}

1.05 \times 9.5

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