express the following as a rational numbers (1/3-²)-¹×9-²
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it will be 6561 let me explain how
first -2 and -1 are the powers which we have to multiply and then we have to make the bases same so solve the powers 1/ 3 to the power 2 equals 81 and 9 to the power -2 equals 81 .now we got the bases same so we can add them so their us no power their so we will expect it 1 so now we will add the power means 1+ 1 equals 2 so 81 to the power 2 equals 6561 as a rational number.
first -2 and -1 are the powers which we have to multiply and then we have to make the bases same so solve the powers 1/ 3 to the power 2 equals 81 and 9 to the power -2 equals 81 .now we got the bases same so we can add them so their us no power their so we will expect it 1 so now we will add the power means 1+ 1 equals 2 so 81 to the power 2 equals 6561 as a rational number.
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