Question

which of the following are empty sets why?​

Answer 1

Answer:

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Step-by-step explanation:

Photosynthesis : The process by which green plants and other green organisms prepare their food own by getting water and nutrients from soil, sunlight from sun and in presence of carbon dioxide and chlorophyll they can prepare. Humans and other non-green organisms can't do this process because they didn't have chlorophyll that is why only plants and other green organisms can prepare their food own.

Answer 2

Answer:

{x:x is a real number and x ² +1=0}

Step-by-step explanation:

x ² +1=0

⇒x ² =−1

⇒x=±i

i.e x is an imaginary number.

Hence {x:x is a real number and x ² +1=0} is an empty set.

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