1990
If the radius of the parallel of latitude 30oN is equal to the radius of the parallel of latitude θoS, what is the value of θ?
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1990 WAEC SSCE Mathematics Past Questions
1990
calculate the surface area of a sphere of radius 7cm [Take π = 22/7]
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1990
Solve the equation 2a2 - 3a - 27 = 0
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1990
Find the value of m which makes x2 + 8 + m a perfect square
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1990
Solve the equation 7y2 = 3y
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1990
Factorize 2e2 - 3e + 1
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1990
Factorize x2 + 4x - 192
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1990
In the diagram above, O is the center of the circle with radius 10cm, and ∠ABC = 30o. Calculate, correct to 1 decimal place, the length of arc AC [Take π = 22/7]
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1990
The area shaded with vertical lines is the solution set of the inequalities:
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1990
The area shaded with horizontal lines is the solution set of the inequalities:
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1990
In a class of 80 students, every students had to study economics or geography, or both economics and geography, if 65 students studied economics and 50 studied geography, how many studied both subjects?
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1990
Find the sum of the first five terms of the G.P 2.6 18 ....
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1990
Find the values of x for which y = 5
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1990
From the graph determine the roots of the equation y = 2x2 + x - 6
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1990
Find the 4th term of an A.P, whose first term is 2 and the common difference is 0.5
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1990
While doing his physics practical, Idowu recorded a reading as 1.12cm instead of 1.21cm. Calculate his percentage error
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1990
If log x = 2.3675 an log y = 0.9750, what is the value of x + y? Correct to three significant figures
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1990
Evaluate using the logarithm table, log(0.65)2
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1990
Simplify log√8/log8
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1990
Given that 1/3log10 P = 1, find the value of P
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