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Algebra

Multiple Choice Questions

71.

If P = 99, then the value of

10000000
9990000
999999
990000

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72.
If a = 64 and b = 289, then the value of $open parentheses square root of square root of straight a plus square root of straight b end root minus square root of square root of straight b minus square root of straight a end root close parentheses to the power of 1 half end exponent$ is

$2 to the power of 1 half end exponent$

2

4

4

2 to the power of 1 half end exponent

a = 64 and b = 289
$therefore space space square root of straight a space equals space square root of 64 space equals space 8 space space and space space square root of straight b space equals space square root of 289 space equals space 17$
$therefore space space open parentheses square root of square root of straight a plus square root of straight b end root space minus space square root of square root of straight b minus square root of straight a end root close parentheses to the power of 1 half end exponent space equals space open parentheses square root of 8 plus 17 end root space minus space square root of 17 minus 8 end root close parentheses to the power of 1 half end exponent equals space space left parenthesis square root of 25 space minus space square root of 9 right parenthesis to the power of 1 half end exponent space equals space left parenthesis 5 space minus space 3 right parenthesis to the power of 1 half end exponent space equals space left parenthesis 2 right parenthesis to the power of 1 half end exponent$

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73.

The value of
is

2
1
-1
0

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74.

If x = y = 333 and z = 334, then the values of x³ + y³ + z³ - 3xyz is

0
667
1000
1000

278 Views

75.

If (x - a) (x - b) = 1 and a - b + 5 = 0, then the value of $left parenthesis straight x minus straight a right parenthesis cubed space minus space fraction numerator 1 over denominator left parenthesis straight x minus straight a right parenthesis cubed end fraction$ is

-125
1
125
125

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76.

If $square root of straight x space equals space square root of 3 space minus space square root of 5$ , then the value of $straight x squared minus 16 straight x plus 6$ is

0
-2
2
2

152 Views

77.

The value of $square root of 2 cube root of 4 square root of 2 cube root of 4 square root of 2 cube root of 4......... end root end root end root end root end root end root$ is

213 Views

78.

If a² + b² + c² = 2(a - b - c) - 3, then the value of 4a - 3b + 5c is

115 Views

79.

Out of the given responses, one of the factors of
(a² - b²)³ + (b² - c²)³ + (c² - a²)³ is

(a + b) (a - b)
(a + b) (a + b)
(a - b) (a - b)
(a - b) (a - b)

152 Views

80.

If $straight x space equals space cube root of 5 plus 2 comma$ then the value of $straight x cubed minus 6 straight x squared plus 12 straight x minus 13$ is

-1
1
2
2

126 Views

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Multiple Choice Questions

72. If a = 64 and b = 289, then the value of is 2 4 4