1.

I^135 +i^136 +i^137 +i✓138​

Answer»

0Step-by-step explanation:we KNOW that, i = √-1i² = (√-1)² = -1i³ = i² X i = -i i^4 = (i²)² = (-1)² = 1135 = 4(33) + 3=> i^135 = i^4(33) + i^3 = 1 x -i = -i=> i^136 = 1 , i^137 = i , i^138 = -1.•. i^135 +i^136 +i^137 +i^138 = -i + 1 + i + (-1) = 0



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