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• # Difficult Question for Math JAMB 2006

Mathematics

28-01-2016 14:59:00 +0000

These questions presented a challenge for most of the students that attempted them. Lets all attempt to answer them.
Question 5) If dy/dx = x + cos x, find y
A. x2/2 - sin x + c
B. x2 - sin x + c
C. x2/2 + sin x + c
D. x2 + sin x + c

Question 41) Convert 22324 to a number in base six
A. 5406
B. 2546
C. 5536
D. 4506

UPDATE - ANSWER INCLUDED BELOW Question 5
The correct answer is C
SOLUTION
dy/dx = x + cosx
Cross -Muiltiplying we have
dy = (x + cosx) dx
Integrating we have ∫dy = ∫(x + cosx) dx
y = ∫xdx + ∫cosxdx
y = x2/2 + cosx + c.

41) D

0 28-01-2016 15:07:00 +0000

• Oluwa Grinity

Hello Vivian

0 28-01-2016 22:14:00 +0000

• Joseph okwudi

no5 is c and no41is d

0 28-01-2016 22:24:00 +0000

A big thanks to all who participate in solving the above questions including @Vivian Ada and @Joseph who got the answers right. The correct answer and solution for each question is updated in the post.

0 29-01-2016 15:16:00 +0000

• Kolawole Kwiz

Nice one

0 08-02-2016 23:08:00 +0000

• ikiliagwu tracy

cool thanks

0 15-02-2016 14:26:00 +0000

• Idris Olawhaley

that is good

0 15-02-2016 17:26:00 +0000

• kingsotex patrick

How

0 16-02-2016 07:57:00 +0000