Question

Exp. 32. Let A = {0, {0}, 1, {1, o}, 7). Which of the following are true? Give reasons:

(i) ΦεΑ

(iii) {1} E A

(v) 7 CA

(vii) {{7}, {1}} CA

(ix) {{0}} CA.

(ii) {0} E A

(iv) {7,0} CA

(vi) {7, {1}} CA

(viii) {0, {0}, {1, 0}} CA​

Answer 1

Step-by-step explanation:

Correct option is

A

⊘ϵA

B

{⊘}ϵA

D

{7,⊘}⊂A

a. ⊘ is present in A. So, ⊘∈A

b. Another subset ⊘ is present in set A. So,⊘∈A

c. 1 belongs to A, but not {1}. Hence {1} is not the subset of A

d. 7 and ⊘ are present in A. ∴{7,⊘}⊂A

Answer 2

ᴘʜᴏᴛᴏsʏɴᴛʜᴇsɪs, ᴛʜᴇ ᴘʀᴏᴄᴇss ʙʏ ᴡʜɪᴄʜ ɢʀᴇᴇɴ ᴘʟᴀɴᴛs ᴀɴᴅ ᴄᴇʀᴛᴀɪɴ ᴏᴛʜᴇʀ ᴏʀɢᴀɴɪsᴍs ᴛʀᴀɴsғᴏʀᴍ ʟɪɢʜᴛ ᴇɴᴇʀɢʏ ɪɴᴛᴏ ᴄʜᴇᴍɪᴄᴀʟ ᴇɴᴇʀɢʏ.