Question 281
What is the derivative of f(x) = x^3 + 2x?CalculusDifferentiation rulesmedium
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Question 282
In triangle ABC, if angle A = 90°, side AB = 6 cm, and side AC = 8 cm, what is the length of side BC?GeometryTriangles: Pythagoras theoremeasy
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Question 283
If sin θ = 0.5, what is the value of θ in degrees (0° ≤ θ ≤ 180°)?TrigonometryTrigonometric ratios and solutionsmedium
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Question 284
Find the probability of rolling an even number on a fair six-sided die.ProbabilityProbability of simple eventseasy
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Question 285
The data set is: 2, 5, 7, 7, 9, 10, 12. What is the median?StatisticsMeasures of central tendencyeasy
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Question 286
If f(x) = x^2 - 4x + 3, find the x-coordinate of the vertex.FunctionsQuadratic functions and their graphsmedium
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Question 287
Differentiate y = sin x * cos x with respect to x.CalculusDifferentiation: product rulehard
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Question 288
In a circle with radius 5 cm, what is the length of an arc subtended by a central angle of 60°? (Use π ≈ 3.14)GeometryCircle geometry: arc length and sectorshard
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Question 289
What is the derivative of f(x) = 5x^3 - 4x + 1?CalculusDifferentiationmedium
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Question 290
In a triangle, if one angle is 90°, and the hypotenuse is 10 cm, what is the length of the side opposite a 30° angle?TrigonometryTrigonometric Ratioseasy
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