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What term best describes a line ans a point that lie in the same plane

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.