# NumberSkill Math and Chemistry Tuition

• ### Number Skill Introduction video

1,403 views 1 year ago
A video commercial created in 2015. Much of the technology has changed but the passion to pursue academic excellence remains. Show less
• ## Quadratic Inequalities Play all

This lesson teaches the graphical method to solve quadratic inequalities.
This lesson includes various examples with various levels of difficulty.
Example 9 is a common question in exams and example 10 is a more challenging type of question.
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• ## Quadratic Equations and Inequalities - Part 2 Play all

This lesson focuses on the use of "complete the square" to determine the maximum and minimum value of a quadratic equation.
It will go through the steps and logic behind the steps of "complete the square".
It will also show how the general formula of a quadratic equation is derived.
The examples also teaches how to sketch a quadratic curve quickly after completing the square.
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• ## Quadratic Equations and Inequalities - Part 1 Play all

This lesson covers what a quadratic equation is, the nature of quadratic roots and the discriminant.
How is the discriminant linked to the nature of roots.
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• ### Integration using formulae involving tangent inverse and sine inverse - Duration: 19 minutes.

• 35 views
• 1 month ago
• ### How to sketch a hyperbola - Duration: 15 minutes.

• 28 views
• 1 month ago
• ### What are complex numbers? - Duration: 29 minutes.

• 63 views
• 4 months ago
• ### How to sketch a quadratic curve with two real and distict roots - Duration: 12 minutes.

• 45 views
• 4 months ago
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• ### How to master binomial theorem? (Quick Revision) - Duration: 19 minutes.

• 308 views
• 6 months ago
• ### 2013 GCE A-level Paper 2 Q11 Probability - Duration: 20 minutes.

• 137 views
• 7 months ago
• ### 2015 GCE A-level Paper 2 Q9 Probability - Duration: 22 minutes.

• 77 views
• 7 months ago
• ### How to solve partial fractions using the cover-up rule or cover-up method - Duration: 11 minutes.

• 314 views
• 8 months ago
• ### Summation with negative limits - Duration: 12 minutes.

• 124 views
• 8 months ago
• ### Why can't we divide by zero? - Duration: 3 minutes, 8 seconds.

• 163 views
• 1 year ago
• ### Number Skill Online Tutoring - Duration: 93 seconds.

• 169 views
• 1 year ago
• ### Number Skill Introduction video - Duration: 2 minutes, 50 seconds.

• 1,403 views
• 1 year ago
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