If A - 2 - then PA is

The correct option is C {ϕ ,{ 2 } ,{ϕ #160; } ,{ϕ ,{ 2 } #160; } #160; } ,{{ϕ #160; } ,{ 2 } #160; } ,{{ϕ #160; } ,ϕ #160; } ,{{ϕ #160; } ...

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Number of Subset of a Given Set

If A = 2 ,ϕ...

Question

If $A = {{2}, {ϕ}, ϕ}$ then $P (A)$ is

{{2}, {ϕ}, {{ϕ}}}

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{ϕ, {2}, {ϕ}, {ϕ, {2}}}, {{ϕ}, {2}}, {{ϕ}, ϕ}, {{ϕ}, {2}, {ϕ}, {{ϕ}}}

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{{2, ϕ}, ϕ, {ϕ}, {2}, {ϕ, {2}}}

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None of these

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Solution

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Similar questions

A = \{ϕ, \{ϕ\}, 1, \{1, ϕ\}, 2\}

ϕ \in A

\{ϕ\} \in A

\{1\} \in A

\{2, ϕ\} \subset A

2 \subset A

\{2 \{1\}\} ⊄ A

\{\{2\}, \{1\}\} ⊄ A

\{ϕ, \{ϕ\}, \{1, ϕ\}\} \subset A

\{\{ϕ\}\} \subset A

{tan}^{4} ϕ + {tan}^{2} ϕ = {sec}^{4} ϕ - {sec}^{2} ϕ

0^{\circ} \leq ϕ \leq 90^{\circ}

Let A = { $ϕ$ { $ϕ$ }, 1, {1, $ϕ$ }, 2}. Which of the following are true ?

(i) $ϕ ϵ A$ (ii) { $ϕ$ } $ϵ$ A

(iii) {1} $ϵ$ A (iv) {2, $ϕ$ } $\subset$ A

(v) 2 $\subset$ A (vi) {2, {1}} $⊈$ A

(vii) {{2}, {1}}, $⊈$ A

(viii) { $ϕ$ , { $ϕ$ } , {1, $ϕ$ }} $\subset$ A

(ix) {{ $ϕ$ }} $\subset$ A.

ϕ

tan ϕ = \frac{2}{3}

(\frac{1 + tan ϕ}{sin ϕ + cos ϕ}) . (\frac{1 - cot ϕ}{sec ϕ + csc ϕ})

sec (ϕ - α), sec ϕ, sec (ϕ + α)

cos ϕ = \sqrt{2} cos (α / 2)

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