PE 2 - Surds & Indices | Algebra - Surds & Indices
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If , then the value of x is
- (a)
-1 + √3
- (b)
-1 - √3
- (c)
More than one of the above
- (d)
None of these
Answer: Option A
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Workspace:
If x = 3 + √8 and xy = 1. Find x2 – xy + y2.
Answer: 33
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Workspace:
If x = 1 + √2 + √3, find x4 – 4x3 – 4x2 + 16x + 8.
Answer: 16
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Workspace:
If x = , find the value of x3 - 9x2 + 25x - 20.
- (a)
0
- (b)
1
- (c)
2
- (d)
3
- (e)
None of these
Answer: Option A
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Workspace:
If = = = , then which of the following is correct?
- (a)
+ = + 1
- (b)
+ =
- (c)
+ = - 1
- (d)
+ =
Answer: Option A
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Workspace:
Find the value of + + .
- (a)
1/a
- (b)
a
- (c)
1
- (d)
0
Answer: Option C
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Workspace:
Find x, if 32x+2 + 32x-2 = 738.
Answer: 2
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Workspace:
Simplify .
- (a)
4 - √5
- (b)
- (c)
- (d)
Answer: Option C
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Workspace:
Simplify .:
- (a)
a16
- (b)
a12
- (c)
a8
- (d)
a4
Answer: Option D
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Workspace:
The expression 1 - + equals:
- (a)
1 - √3
- (b)
1
- (c)
-√3
- (d)
√3
Answer: Option A
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Workspace:
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