Question 21
If log_b (81) = 4, what is the value of b?Logarithms and exponentialsLogarithms and exponentialsmedium
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WAEC Mathematics – Liberia
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Question 22
Find the derivative of f(x) = 5x^3 - 2x + 7.Differentiation (calculus)Differentiationeasy
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Question 23
Solve for x: 3x^2 - 12x + 9 = 0.Quadratic equations and functionsQuadratic equations and functionsmedium
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Question 24
Find the derivative of f(x) = 3x^3 - 5x^2 + 2x - 7.Differentiation (calculus)Differentiationmedium
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Question 25
If the vector A = 2i + 3j and vector B = -i + 4j, what is the dot product A · B?VectorsVectorseasy
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Question 26
Solve for \(x\) if \(2x^2 - 5x + 2 = 0\).Quadratic equations and functionsQuadratic equations and functionsmedium
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Question 27
A fair die is rolled once. What is the probability of getting a number greater than 4?Probability and statisticsProbability and statisticseasy
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Question 28
Solve for \( x \) in the equation \( 3x^2 - 12x + 9 = 0 \).Quadratic equations and functionsQuadratic equations and functionsmedium
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Question 29
Given the vector \( \vec{A} = 3\hat{i} - 4\hat{j} \) and \( \vec{B} = -\hat{i} + 2\hat{j} \), find the scalar product \( \vec{A} \cdot \vec{B} \).VectorsVectorsmedium
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Question 30
Evaluate the integral \( \int (3x^2 - 4x + 1) dx \).Integration (calculus)Integration (calculus)easy
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