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Jamb Mathematics Past QuestionsJamb Past Questions and Answers on Trigonometric functionsQuestion 1:The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is A. 1.5 B. 0.8 C. 1.0 D. 1.02 E. 1.05 Question 2:If y = x sin x, Find \(\frac{d^2 y}{d^2 x}\) A. 2 cosx - x sinx B. Sinx + x cosx C. Sinx - x cosx D. X sinx - 2 cosx Question 3:The derivative of cosec x is A. Tan x cosec x B. -cot x cosec x C. Tan x sec x D. -cot x sec x Question 4:The derivative of cosec x is A. Tan x cosec x B. -cot x cosec x C. Tan x sec x D. -cot x sec x Question 5:If y = 2x - sin2x, find dy/dx when x = π/4 A. π B. -π C. π/2 D. -π/2 |
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