Algebra, trigonometry, coordinate geometry and calculus
Model answer and review guidance
-4
(x−3)²−4 has minimum −4.
ORIGINAL WRITTEN REHEARSAL
Model Test for Exam
BUET Model Test for Exam
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Algebra, trigonometry, coordinate geometry and calculus
Model answer and review guidance
2
(8−2)/(4−1)=2.
Algebra, trigonometry, coordinate geometry and calculus
Model answer and review guidance
1
The identity is 1 for every real angle.
Algebra, trigonometry, coordinate geometry and calculus
Model answer and review guidance
[x³] from 0 to 2 = 8.
Show antiderivative and both bounds.
Algebra, trigonometry, coordinate geometry and calculus
Model answer and review guidance
(x−2)(x−3)=0, so x=2 or 3; both give zero on substitution.
Show both roots and a check.
Passage or question givens
For the worked-case reasoning question, a rectangle has perimeter 20 length units. Let one side be x, with 0 < x < 10. Other questions state their own dimensions.
Multi-step numerical reasoning and checking solutions
Model answer and review guidance
9
Half-perimeter is 14; 14−5=9.
Multi-step numerical reasoning and checking solutions
Model answer and review guidance
49
The 7×7 square gives 49.
Multi-step numerical reasoning and checking solutions
Model answer and review guidance
5
18/3.6=5.
Multi-step numerical reasoning and checking solutions
Model answer and review guidance
A=10x−x²=25−(x−5)²≤25, with equality at x=5.
Use the domain and equality condition.
Multi-step numerical reasoning and checking solutions
Model answer and review guidance
It violates the original physical domain.
Check original constraints rather than the transformed equation alone.
The automatic result counts exact supported answer-key matches. Other valid wording, working, handwriting and compositions need human review. It is not an overall examination mark or an admission prediction.