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42% (01:10) correct 58% (01:16) wrong based on 62 sessions
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Which of the following must be true? A) A Linear equation in one variable always gives a unique value of x. B) A Quadratic equation in one variable always gives two unique value of x. C) \((EVEN)^N\) is always EVEN, Where N is an integer D)\((ODD)^N\) can never be EVEN, Where N is an integer E) |x| is always Positive.
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13 Oct 2018, 10:30
Which of the following must be true? A) A Linear equation in one variable always gives a unique value of x. B) A Quadratic equation in one variable always gives two unique value of x. C) (EVEN)N(EVEN)N is always EVEN, Where N is an integer D)(ODD)N(ODD)N can never be EVEN, Where N is an integer E) |x| is always Positive.
Re: Which of the following must be true?
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13 Oct 2018, 10:37
OA : D
A) A Linear equation in one variable always gives a unique value of x. ==> Can have no solution some times B) A Quadratic equation in one variable always gives two unique value of x.==> can have x as same values as ==> X^2 -4 = 0 , where x have { 2,2 } values C) Even ^N is always EVEN, Where N is an integer ==> when n is Zero ==False D) Odd ^ N is can never be EVEN, Where N is an integer ==> True for all values of N as Odd * Odd is always ODD , True for N = 0 as well , as 3^0 = 1 which is ODD E) |x| is always Positive ===> false for x = 0
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42% (01:10) correct 
