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प्रश्न
Evaluate:
`7^0 xx (25)^(-3/2) - 5^(-3)`
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उत्तर
`7^0 xx (25)^(-3/2) - 5^(-3)`
= `7^0 xx ( 5 xx 5 )^( -3/2 ) - 5^( -3 )`
= `7^0 xx (5^2)^(-3/2) - 1/5^3`
= `7^0 xx [(5)^[2 xx (-3/2)]] - 1/5^3`
= `7^0 xx 5^(-3) - 1/5^3`
= `1 xx 5^(-3)- 1/5^3`
= `1/5^3 - 1/5^3`
= 0
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संबंधित प्रश्न
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`([27^-3]/[9^-3])^(1/5)`
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`( x^a/x^b)^( a^2 + ab + b^2 ) xx (x^b/x^c)^(b^2 + bc + c^2) xx (x^c/x^a)^( c^2 + ca + a^2 )`
Simplify:
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