Algebra Question with answer Practice Question and Answer
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Q: If a2=b+c, b2=c+a and c2=a+b then the value of $$ {1\over{1+a}}+{1\over{1+b}}+{1\over{1+c}}$$ is
1122 15e5368aa1b64a60f4f437fde
5e5368aa1b64a60f4f437fde- 1abcfalse
- 21true
- 30false
- 42false
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Answer : 2. "1"
Q: If 0.13 x p2 = 13, then p is equal to
1824 05e2690a74064eb35eef64bb6
5e2690a74064eb35eef64bb6- 110true
- 20.01false
- 30.1false
- 4100false
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Answer : 1. "10 "
Q: If $$x=(\sqrt2+1)^{1\over3} $$, the value of $$(x^3-{1\over {x^3}}) $$ is
780 05dccd83ef348e931548eeddb
5dccd83ef348e931548eeddb- 10false
- 2$$-\sqrt { 2} \ $$false
- 32true
- 4$$3\sqrt { 2} \ $$false
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Answer : 3. "2"
Q: What is the area (in sq. cm) of a rhombus if the lengths of the diagonals are 12 cm and 14 cm ?
1414 05ddce689103cc50a8fa6690c
5ddce689103cc50a8fa6690c- 142false
- 2168false
- 384true
- 463false
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Answer : 3. "84"
Q: If $$ x={\sqrt3\over{2}}$$ then the value of $$ \sqrt{1+x}-\sqrt{1-x}$$ will be
908 05dd3bc8cc2282c484e46fabc
5dd3bc8cc2282c484e46fabc- 11true
- 20false
- 3$$ \sqrt{3}$$false
- 4$$ \sqrt{2}$$false
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Answer : 1. "1"
Q: Out of the given responses one of the factors of (a2-b2)3+(b2-c2)3+(c2-a2)3 is
2300 05dd37868874d2d52fa3169d8
5dd37868874d2d52fa3169d8- 1(a+b) (a-b)true
- 2(a+b) (a+b)false
- 3(a – b) (a – b)false
- 4(b – c) (b – c)false
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Answer : 1. "(a+b) (a-b)"
Q: x = y = 333 and z = 334, then value of x3 + y3 + z3 – 3xyz is
1188 05dd377fd874d2d52fa3169cb
5dd377fd874d2d52fa3169cb- 10false
- 2667false
- 31000true
- 42334false
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Answer : 3. "1000"
Q: If a + b + c = 0, then a3+b3+c3 is equal to
1956 05dd377b5c2282c484e462792
5dd377b5c2282c484e462792- 1a + b + cfalse
- 2abcfalse
- 32abcfalse
- 43abctrue
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Answer : 4. "3abc"
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