Power and indices: Reciprocals

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Presentation transcript:

Power and indices: Reciprocals True/false Reflect Your Turn 3 1 3 4 3 Rule

Number Reciprocal 5 1 5 3 1 3 113 1 113 1 𝑎 1 𝑎 𝑎 𝑏 2 1 𝑎 𝑏 2 −𝑎 𝑏 2 − 1 𝑎 𝑏 2 −𝑎 − 1 𝑎 −3 − 1 3 −113 − 1 113 Number Reciprocal 1 5 5 1 7 7 1 2754 2754 1 𝑚 𝑚 1 2𝑚 2𝑚 1 2𝑚 𝑛 2 2𝑚 𝑛 2 3 2𝑚 𝑛 2 2𝑚 𝑛 2 3 5 2𝑚 𝑛 2 2𝑚 𝑛 2 5 5 2𝑚 2𝑚 5 5 𝑚 𝑚 5

Number Reciprocal 5 2 2 5 5 3 3 5 514 3 3 514 3 1 1 3 3 1 =3 3 3 3 3 =1 4 3 3 4 1 1 3 1 2 3 Number Reciprocal 2 2 3 3 8 2 2 5 5 12 2 2 25 25 52 −2 2 25 − 25 52 𝑎 2 25 25 25𝑎+2 2 𝑎 25 25 50+𝑎 2 2 𝑎 𝑎 2𝑎+2 2 5 5 2 0.4 3.4 5 17

Number Reciprocal 5 1 5 3 1 3 113 1 113 1 𝑎 1 𝑎 𝑎 𝑏 2 1 𝑎 𝑏 2 −𝑎 𝑏 2 − 1 𝑎 𝑏 2 −𝑎 − 1 𝑎 −3 − 1 3 −113 − 1 113 Number Reciprocal 1 5 5 1 7 7 1 2754 2754 1 𝑚 𝑚 1 2𝑚 2𝑚 1 2𝑚 𝑛 2 2𝑚 𝑛 2 3 2𝑚 𝑛 2 2𝑚 𝑛 2 3 5 2𝑚 𝑛 2 2𝑚 𝑛 2 5 5 2𝑚 2𝑚 5 5 𝑚 𝑚 5

Number Reciprocal 5 2 2 5 5 3 3 5 514 3 3 514 3 1 1 3 3 1 =3 3 3 3 3 =1 4 3 3 4 1 1 3 1 2 3 Number Reciprocal 2 2 3 3 8 2 2 5 5 12 2 2 25 25 52 −2 2 25 − 25 52 𝑎 2 25 25 25𝑎+2 2 𝑎 25 25 50+𝑎 2 2 𝑎 𝑎 2𝑎+2 2 5 5 2 0.4 3.4 5 17

Your Turn Number Reciprocal 13 1 19 7 19 −1 7 19 1.9 @mrbartonmaths

Your Turn - answers Number Reciprocal 13 1 13 1 19 19 7 19 19 7 −1 7 19 − 19 26 1.9 10 19 @mrbartonmaths