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Negative Exponents and Reciprocals (4.5)

Negative Exponents and Reciprocals (4.5). Bellwork :. Yesterday we learned that X 1/2 means “the square root of X”, so what do you think X -1 means? How would you write it?.

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Negative Exponents and Reciprocals (4.5)

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  1. Negative Exponents and Reciprocals (4.5)

  2. Bellwork: Yesterday we learned that X1/2 means “the square root of X”, so what do you think X-1 means? How would you write it?

  3. When a number has a negative exponent, we have to turn the number into a reciprocal. So X-1 will become 1/X. What will happen if we have 1/X-1? In general, X-n = 1/Xn as long as X is not equal to zero.

  4. Try These: 1) (-3)-2 2) (3/4)-3 3) (9/16)-3/2

  5. Assignment: Page 233: # 3, 6, 7, 8, 13

  6. With a number written in the form X-n, why can’t X be equal to 0?

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