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Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
---|---|---|---|---|---|---|
7.5 | Rationalising the Denominator |
1. . What is the regular form of the fraction 3/√7?
Correct Answer: C
2. . What is the simplest form of the fraction 10√3/√5 ?
Correct Answer: B
3. . What is the regular form of the expression √2/1 - √3?
Correct Answer: A
4. . Which is the equivalent expression of
after rationalising the denominator?
Correct Answer: A
5. . What is the simplest form of the expression
Correct Answer: A
6. . Write the expression
in the form a + b√c, where a, b and c are integers.
Correct Answer: C
7. . What is the value of a, b and c if the expression
Correct Answer: D
8. . A rectangle has a width of (4 - √10) cm and an area of 240 cm2. Find the length of the rectangle by expressing the answer in the form a + b√10 where a and b are integers. Recall the formula Area = Length × Width used to calculate the area of a rectangle.
Correct Answer: C
9. . The dimensions of a rectangle are (5 - √2) cm and y cm where y is the width. What is the width of this rectangle if the area is 23 cm2? Recall the formula Area = Length × Width used to calculate the area of a rectangle.
Correct Answer: A
10. . What is the regular form of the algebraic fraction
Correct Answer: D
11. . What is the regular form of the fraction √18/24 ?
Correct Answer: C
12. . What is the regular form of the fraction √80/36 ?
Correct Answer: B
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