If A -1-2-2-1-3-4-3-4- then n A -A- 0B- 9- 8D- 4

The correct option is D 4A={1,2,3,4} ⇒ n(A)=4 ...

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Cardinality of Sets

If A =1,2,2,1...

Question

If $A = {1, 2, 2, 1, 3, 4, 3, 4}$ , then $n (A) =$

0

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8

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9

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4

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Solution

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Similar questions

A = {1, 2, 2, 1, 3, 4, 3, 4}

n (A) =

A = ⎡ ⎢ ⎣ \begin{matrix} 1 & 2 & 2 2 & 1 & 2 2 & 2 & 1 \end{matrix} ⎤ ⎥ ⎦

| (A^{2} - p A - q I) | = 0

p + q =

\int_{0}^{2 π} \sqrt{1 + s i n \frac{x}{2}} d x =

(\frac{25}{29})^{m} = \frac{(25)^{8}}{(29)^{8}}

\int_{0}^{2 π} \sqrt{1 + \sin \frac{x}{2}} d x

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