10-20, 20-30, 30-40, 40-50 में वर्ग-विस्तार (i) है
(अ) 10
(ब) 5
(स) 15
(द) इनमें से कोई नहीं
Answers
Answered by
2
Answer:
Option d
Mark a Brainlist please.......plzzzzzzzzzzzz
Answered by
1
Answer:
Option d) is right.........
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