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Expansion of (x^2 - y^2)

Evaluate thes...

Question

Evaluate these using identity:

(i) 55 × 45; (ii) 33 × 27; (iii) 8.5 × 9.5; (iv) 102 × 98.

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Solution

Identity:

(i)

(ii)

(iii)

(iv)

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Similar questions

Using binomial theorem evaluate each of the following:

$(i) (96)^{3} (i i) (102)^{5} (i i i) (101)^{4} (i v) (98)^{5}$

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

Evaluate:

(i) 53 × 55; (ii) 102 × 106; (iii) 34 × 36; (iv) 103 × 96.

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

8.5 \times 9.5

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