Question

why if we cut an onion and after our eyes get tears ?​

Answer 1

Answer:

Given

a

2

=13 and a

5

=25

We know that

a

n

=a+(n−1)d

∴a

2

=a+(2−1)d

⇒13=a+(2−1)d

⇒a+d=13 ...(i)

and a

5

=a+(5−1)d

⇒25=a+4d

⇒a+4d=25 ...(ii)

Now, subtracting (i) from (ii), we get

3d=12

⇒d=4

Now a+d=13 [from (i)]

⇒a=9

Hence, a

7

=a+6d=9+6(4)

⇒a

7

=33

$this \: is \: its \: formula \: ok \:$

Answer 2

Answer:

When you cut an onion, they produces a simultaneous chemicals which unleashes PS-Oxide by which the irritant causes our eyes to fill with tears. Inorder to prevent tears, one has to chop the onion in such a way that will produce less irritant and to prevent one's eyes from reaching through.

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Explanation: