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$G = U(98) = \{k \in \mathbb{N} : k \leq 98,\ \gcd(k,98)=1 \}$ be a group, where $\mathbb{N}$ is the set of all natural…
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Which of the following is false: (a) Every convergent positive series is convergent. (b) Every absolutely con…
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Topic: DU MCA 2021
Next 10 Questions — DU MCA 2021
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Let $Re(z)$ and $Im(z)$ be the real and imaginary parts of any complex number $z$, and $\arg(z)$ denotes the principal …
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Which one of the following statements is NOT correct in the ring $ R = \mathbb{Z}_4 \oplus \mathbb{Z}_6? $
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Given that $3^x$=656. The value of $5^{x-5}$ is ...(a) 81(b) 125(c) 225(d) 1/125
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What is the next term in the series 6, 20, 42, 72, 110, ... is(a) 156(b) 210(c) 110(d) 119
Topic: DU MCA 2021