C-01-Q072mediumsingle_mcq

If $a, b, c, d$ are four consecutive natural numbers, which of the following is a perfect square?

a $abcd$
b $ab + cd$
c $abcd + 1$
d $abcd - 1$

ব্যাখ্যা

The product of four consecutive natural numbers plus $1$ is always a perfect square, since it equals $(n^2+3n+1)^2$ . Hence $abcd + 1$ is the perfect square.

এই অধ্যায়ের আরও প্রশ্ন

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C-01-Q075If are integers, what should be added to to obtain a perfect square?
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C-01-Q078equals—
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Real Numbers — সব প্রশ্ন দেখুন (149টি) →

If a,b,c,da, b, c, da,b,c,d are four consecutive natural numbers, which of the following is a perfect square?

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

If a,b,c,da, b, c, da,b,c,d are four consecutive natural numbers, which of the following is a perfect square?

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

If $a, b, c, d$ are four consecutive natural numbers, which of the following is a perfect square?

If $a, b, c, d$ are four consecutive natural numbers, which of the following is a perfect square?