Algebra Question with answer Practice Question and Answer
8 4 Q:
602df5bb9f2a38430909a60e 4 Q:
5f1e99e21b4d8003eeb16c16 4 Q:
5f1e9da626299776aa421043 4 Q:
63861300a72dd915f31820dc 4 Q:
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Q: If $$ {x+{1\over x}=7}$$ then $$ {x^{2}+{1\over {x^{2}}}=?}$$
643 0602df5bb9f2a38430909a60e
602df5bb9f2a38430909a60e- 147true
- 245false
- 349false
- 451false
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Answer : 1. "47"
Q: If $${\sqrt{7-2}\over\sqrt{7+2}}=a\sqrt{7}+b$$, then the value of a is :
639 05f1e99e21b4d8003eeb16c16
5f1e99e21b4d8003eeb16c16- 1$${4\over3}$$false
- 2$${-4√7\over3}$$false
- 3$${11\over2}$$false
- 4$$-{4\over3}$$true
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Answer : 4. " $$-{4\over3}$$"
Q: If a ≠ b, then which of the following statement is true ?
621 05f1e9da626299776aa421043
5f1e9da626299776aa421043- 1$${a+b\over 2}= \sqrt{ab} $$false
- 2$${a+b\over 2}> \sqrt{ab} $$true
- 3$${a+b\over 2}< \sqrt{ab} $$false
- 4All of the abovefalse
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Answer : 2. "$${a+b\over 2}> \sqrt{ab} $$"
Q: If p3 – q3 = (p-q)[(p-q)2+xpq)] then the value of x is
587 063861300a72dd915f31820dc
63861300a72dd915f31820dc- 11false
- 2-1false
- 33true
- 42false
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Answer : 3. "3"
Q: If $$n+{2\over 3}n+{1\over2}n+{1\over7}n=97$$ then the value of n is :
551 05f1e9aac1b4d8003eeb1787d
5f1e9aac1b4d8003eeb1787d- 144false
- 246false
- 340false
- 442true
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Answer : 4. "42 "
Q: If $$x+{1\over x}=c{1\over c}$$ then the value of x
524 06343d7e4e76f2264c5df97a4
6343d7e4e76f2264c5df97a4- 1c, 1\ctrue
- 2c, c2false
- 3c, 2cfalse
- 40, 1false
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Answer : 1. "c, 1\c "
Q: A complete factorization of x4+64 is
522 063861340a72dd915f318247d
63861340a72dd915f318247d- 1$$\left(x^2+8 \right)^2 \ $$false
- 2$$\left(x^2+8 \right) \ (x^2-8)$$false
- 3$$\left(x^2-4x+8 \right) \ (x^2-4x-8)$$false
- 4$$\left(x^2+4x+8 \right) \ (x^2-4x+8)$$true
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Answer : 4. "$$\left(x^2+4x+8 \right) \ (x^2-4x+8)$$"
Q: if a=26 and b=22, then the value of $${{a^3-b^3}\over {a^2-b^2}}-{3ab\over a+b}$$ is
520 06480447b23e51f4777046d10
6480447b23e51f4777046d10- 1$$11\over 13$$false
- 2$$1\over 3$$true
- 3$$5\over 3$$false
- 4$$13\over 11$$false
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Answer : 2. "$$1\over 3$$"
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