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Instructions
What should come in place of the question mark (?) in the following questions?
Solution
Expression : $$(91)^{2} + (41)^{2} - \sqrt{?} = 9858$$
=> $$\sqrt{?} = (91)^2 + (41)^2 - 9858$$
=> $$\sqrt{?} = 8281 + 1641 - 9858 = 104$$
=> $$? = (104)^2 = 10816$$
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