Question
√10000 × √8100 - (50)² =
√(?) + (80)² What should come in place of the question mark (?) in the following questions?Solution
√10000 × √8100 - (50)² = √(?) + (80)² => 100 × 90 - 2500 = √? + 6400 => 9000 - 2500 = √? + 6400 => √? = 6500 - 6400 => √? = 100 => ? = 10000
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