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If (c^2=961) then what is the positive value of (c)?

Answer and explanation

Correct answer: 31

Since (31)^2 = 31 × 31 = 961, the positive value of c is 31. Although c^2 = 961 gives c = 31 or c = -31, the question specifically asks for the positive value. Exam tip: when a positive value is requested from a square, choose the positive square root.

Related tags

ExponentsSquare RootsNumber SystemsPerfect SquaresQuadratic EquationsMathematicsClass 9 Mcq

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