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Match the expressions of column I with that of column II: Column I Column II (1) `(21x + 13y)^2` (a) `441x^2 – 169y^2` (2) `(21x – 13y)^2` (b) `441x^2 + 169y^2 + 546xy` (3) `(21x – 13y) (21x + 13y)` (c) `441x^2 + 169y^2 – 546xy` (d) `441x^2 – 169y^2 + 546xy`
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Multiplicative inverse of `2^7`
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The human body has about 100 billion cells. This number can be written in exponential form
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`(-4)^4 xx(5/4)^4`
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`(2^-3)^2 xx (3^-2)^3`
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The distance between earth and sun is 150 million kilometres which can be written in exponential form as
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Very small numbers can be expressed in standard form using positive
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`(–10) xx (–10) xx (–10) xx (–10) =
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Simplify
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Find x so that `(–5)^(x+1) xx (–5)^5 =
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In `2^n`, n is known
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For a fixed base, if the exponent decreases by 1, the number
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`3^(–2)` can be written
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The value of `1/4^-2`
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The value of `3^5 -: 3^(–6)`
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The value of `(2/5)^-2`
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The reciprocal of `(2/5)^-1`
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The multiplicative inverse of `10^(–100)`
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The value of `(–2)^(2xx3–1)`
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The value of `(-2/3)^4` is equal
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