Answer:
86) option 3rd...7
87) It's answer should be 4...but may be there's no option .
88) option 3rd ...n= 4.
89) option 3rd... 25²2P⁵
90) option 3rd..21+1
Explanation:
Well, I m not sure about the second last and last one...
They may be correct or wrong too....sorry for that...
Hope that other ones are helpful...
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Answers & Comments
Answer:
86) option 3rd...7
87) It's answer should be 4...but may be there's no option .
88) option 3rd ...n= 4.
89) option 3rd... 25²2P⁵
90) option 3rd..21+1
Explanation:
Well, I m not sure about the second last and last one...
They may be correct or wrong too....sorry for that...
Hope that other ones are helpful...