We have compiled 10 likely exam questions on sets for you to try today, use the link below when you are ready to take the test.
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Likely Exam Questions on Sets
Date: 22nd Jan. 2025
By: Anoff Akonnor
We continue our lesson on sets with a short test.
BECE 1997 Section A
Date: 17th Jan. 2025
By: Anoff Akonnor
Join us today as we practice the BECE 1997 Past Question.
Practicing past questions is one of the ways to easily pass Mathematics at the BECE. Today we tackle the BECE 1997 section A questions.
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Heron's Formular
31st Dec. 2024.
Research by Anoff Akonnor
Heron's formula is a method for calculating the area of a triangle when the lengths of all three sides are known.
It is particularly useful when the height of the triangle is not readily available.
If a triangle has sides of lengths \(a, b\) and \(c\), then the area \(A\) is given by: \[A = \sqrt{s(s-a)(s-b)(s-c)}\]
Where \(s\) is the semi-perimeter of the triangle: \[s = \frac{a+b+c}{2}\]
STEPS TO USE HERON'S FORMULAR
\((1)\) Calculate the semi-perimeter \(s = \frac{a+b+c}{2}\)
\((2)\) Substitute \(s, a, b\) and \(c\) into the formula: \[A = \sqrt{s(s-a)(s-b)(s-c)}\]
\((3)\) Solve for \(A\).
Try Work
A triangle has sides of lengths 7, 8, and 9. Find its area.
Quadratic Equations
10th Nov. 2024.
Research by WENDY OBENG: GOOD SHEPHERD INTERNATIONAL SCHOOL (BASIC 8)
Quadratic equations are a type of polynomial equation of degree two (2), which means the highest power of the variable (usually \(x\)) is 2.
They have the general form:
\[ax^2 + bx + c = 0\]
\(*\) \(a\), \(b\) and \(c\) are constants (numbers).
\(*\) \(x\) is the variable (the value we are trying to solve for).
\(*\) \(a\) cannot be zero (0). That is, if \(a = 0\) the equation is not a quadratic equation, but a linear equation.
Below are examples of quadratic equations:
1. \(x^2 + 4x + 4 = 0\)
2. \(2x^2 - 3x - 1 = 0\)
3. \(x^2 - 7x + 12 = 0\)
What is a leap Year?
9th Nov. 2024.
by ANOFF AKONNOR
In the 1990 BECE Past Question, there was a question that involved knowing what a leap year is. So what is a leap year?
A leap year is typically those years that are divisible by 4. Example 1988, 1992, 1996, etc
However, there's an exception: years divisible by 100 are not leap years unless they are also divisible by 400.
Leap years have 366 days, that is, they include an extra day in February (February 29).
Do you know any fun facts about leap years?
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