Question:
if a^3=-1 then what is a=?
Answer:
Given a3 = -1
=> a = 3√(-1)
=> a = 3√(-1 * -1 * -1) {since -1 * -1 * -1 = -1}
=> a = -1
So, the value of a is -1
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Given a3 = -1
=> a = 3√(-1)
=> a = 3√(-1 * -1 * -1) {since -1 * -1 * -1 = -1}
=> a = -1
So, the value of a is -1