Question

Set of people who landed on mars before 1994 is empty set or not

Answer 1

Answer:

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Step-by-step explanation:

The period 1981-1986 was an optimistic one for U.S. piloted spaceflight. The Space Shuttle was flying and anything seemed possible - even humans on Mars. One of the earliest pre-Challenger optimistic Mars missions was British engineer Robert Parkinson's "Mars in 1995!" Beyond Apollo blogger David S. F. Portree looks back at Parkinson's plan for a NASA piloted Mars mission based on European Spacelab modules and Shuttle and Space Station hardware.

Answer 2

Yes, Set of people who landed on mars before 1994 is an empty set.

Given :

Set of people who landed on mars before 1994

To find :

Whether the set is empty or not

Solution :

Let the set of people who landed on mars before 1994 be A

Hence, A = { }

The Viking landers were the first spacecraft to land on Mars in the 1970s. Hence, the number of people who landed on Mars before 1994 is 0.

Thus, set A is an empty set or null set.

Therefore, Yes, Set of people who landed on mars before 1994 is an empty set.

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