1.

निम्न के मान ज्ञात कीजिए । (i) `(4x - (1)/(2x))^(2)` (ii) `(5x^(2) - 7y^(2))^(2)` (iii) `(x - 0.1)(x + 0.1)`

Answer» (i) `16x^(2) - 4 + (1)/(4x^(2))`
(ii) `25x^(4) - 70x^(2)y^(2)+49y^(4)`
(iii) `x^(2)-0.01`


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