I bet not all can solve this set!

Geometry Level 2

How many elements does the set A = { ∣ sin ⁡ θ ∣ : θ = ( 2 n + 1 ) π 2 , n ∈ N } A= \left \{|\sin \theta|: \theta= \dfrac{(2n+1)\pi}2, n \in \mathbb N \right \} have?


The answer is 1.

Aryan Sanghi by Aryan Sanghi , 17, India

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1 solution

Aryan Sanghi
Mar 2, 2018

The roster method of the above set is A={1}, hence it is a singleton set(set having one element).

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Umm a minor typo........it should be Roster Method.........!!

Aaghaz Mahajan - 2 years, 7 months ago

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Oh, thanks

Aryan Sanghi - 2 years, 7 months ago

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