MHB What is the Domain of the Function t^(-1) + 2t^(-2)?

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The function t^(-1) + 2t^(-2) is expressed as 1/t + 2/t^2. The domain of this function includes all real numbers except for t = 0. At t = 0, the function is undefined due to division by zero. Therefore, the domain can be stated as all real numbers except zero. The discussion confirms that the function is defined for all other values of t.
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Find the domain.

t^(-1) + 2t^(-2)

Let me see if I get it.

1/t + 2/t^(2)

Let D = domain

D = t is all real numbers except for 0.
 
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RTCNTC said:
Find the domain.

t^(-1) + 2t^(-2)

Let me see if I get it.

1/t + 2/t^(2)

Let D = domain

D = t is all real numbers except for 0.

yes because at t = 0 it is not defined and at all other t it is defined
 
Thread 'Erroneously finding discrepancy in transpose rule'

Thread 'Erroneously finding discrepancy in transpose rule'

Obviously, there is something elementary I am missing here. To form the transpose of a matrix, one exchanges rows and columns, so the transpose of a scalar, considered as (or isomorphic to) a one-entry matrix, should stay the same, including if the scalar is a complex number. On the other hand, in the isomorphism between the complex plane and the real plane, a complex number a+bi corresponds to a matrix in the real plane; taking the transpose we get which then corresponds to a-bi...
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