2016 - JAMB Mathematics Past Questions and Answers - page 4

Mean = (\frac{2 - t + 4 + t + 3 - 2t + 2 + t + t - 1}{5})

= (\frac{10}{5}) = 2

(\frac{12.02 \times 20.06}{26.04 \times 60.06}) = (\frac{241.1212}{15698.96}) = 0.154

y = 2x³ + 6x² + 6x + 1

(\frac{dy}{dx}) = 6x² + 12x + 6

3,9,27,81,.....

r = (\frac{9}{8}) = 3

T_n = ar^n-1

T_n = 3(3)^n-1 = (\frac{3(3^2)}{3})

1 - ((\frac{1}{7}) x 3 (\frac{1}{2})) (\div) (\frac{3}{4})

1 - ((\frac{1}{7}) x (\frac{7}{2})) x (\frac{4}{3})

1 - (\frac{1}{2}) x (\frac{4}{3})

1 - (\frac{2}{3}) = (\frac{1}{3})

120km (\to) 45litres

1km (\to) (\frac{45}{120})litres

600km (\to) (\frac{45}{120}) x 600 = 225litres

y = 3x³ + 2x² + 3x + 1

(\frac{dy}{dx}) = 9x² + 4x + 3

(\int)^{(sin x - 5x^2)} = -cosx - (\frac{5x^3}{3}) + k

N = (\frac{p}{2})((\frac{T_1 - T_2}{T_1}))

12 = (\frac{p}{2})((\frac{27 - 24}{27}))

24 = P((frac{3}{27})

P = 24 x 9 = 216

3x - 5y = 9 ------x2

6x - 4y = 12 -----x1

6x - 10y = 18

-6x - 4y = 12

____________

  \(\frac{6y}{-6}\) = \(\frac{6}{6}\)<br />

y = -1

in eq (1) 3x - 5y = 9

3x - 5(-1) = 9

3x + 5 = 9

3x = 4

x = (\frac{4}{3})