Relations And Functions

  • Question
    CBSEENMA11012932

    i9 + i19

    Solution

    i9 + i19     = i8.i +i18.i = (i2)4.i. (i2)9.i
                  = (-1)4 .i + (-1)9 .i                    (use i2 = -1)
                  = i - i = 0

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