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jamb-2019

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16 questions


A binary operation ⊗ is defined by m⊗n=mn+m&mi...
A binary operation ⊗ is defined by m⊗n=mn+m−n on the set of real numbers, for all m, n ∈  R. Find the value of 3⊗(2&otim...
1 year ago 1 answer(s) 3 votes


If  = 58 , find the value of x
If 
1 year ago 1 answer(s) 3 votes


 if y = 6x3 + 2x-2 - x-3 find  dy/dx
 if y = 6x3 + 2x-2 - x-3 find  dy/dx
1 year ago 1 answer(s) 4 votes


D/dx [log(4x3 - 2x)] is equal to
d/dx [log(4x3 - 2x)] is equal to
1 year ago 1 answer(s) 3 votes


Integrate ∫2-1 (2x2 + x)dx
integrate ∫2-1 (2x2 + x)dx
1 year ago 1 answer(s) 3 votes


Solve the inequality: −7 ≤ 9 - 8x < 17
Solve the inequality: −7 ≤ 9 - 8x < 17
1 year ago 1 answer(s) 2 votes


If p varies inversely as the square root of q, where p = 3 a...
If p varies inversely as the square root of q, where p = 3 and q = 16, find the value of q when p = 4.  A:  12 B:  8 ...
1 year ago 1 answer(s) 3 votes


Tade bought 200 mangoes at 4 for ₦2.50. 30 out of the mang...
Tade bought 200 mangoes at 4 for ₦2.50. 30 out of the mangoes got spoilt and the remaining were sold at 2 for ₦2.40. Find the percentage profit or loss.
1 year ago 1 answer(s) 3 votes


The simple interest on ₦8550 for 3 years at x% per annum i...
The simple interest on ₦8550 for 3 years at x% per annum is ₦4890. Calculate the value of x to the nearest whole number.  A:  19% ...
1 year ago 1 answer(s) 3 votes


Simplify 81-3/4×251/2×2432/5 A: 2/5 B: 3/5 C...
Simplify 81-3/4×251/2×2432/5 A: 2/5 B: 3/5 C:  5/2 D:  5/3
1 year ago 1 answer(s) 3 votes