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(l+m)² -(l-m)²

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(l+m)² -(l-m)²

    • Posted by Techy Trends Gaming 7 years, 1 month ago

    CBSE > Class 08 > Mathematics
    • 2 answers

    Techy Trends Gaming 7 years, 1 month ago

    Wah wah

    0Thank You

    Yogita Ingle 7 years, 1 month ago

    (l + m)2 - (l -m)2 = l2 + 2lm + m2 - (l2 - 2lm + m2)
    = l2 + 2lm + m2 - l2 + 2lm - m2
    = 2lm + 2 lm
    = 4 lm

    0Thank You

    ANSWER
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