1) If the roots of the equation x^2-2ax+a^2+a-3=0 are less than 3 then; a is 2)The number of solution of log 4 (x-1) = log2 (x-3) is 3)The number of real solution of the equation (6-x)/(x^2-4)= 2+x/(x+2) is 4)The two roots of the quadartic equation ax^2+bx+c=0 are both two digits integer with the same unit digits but D/a^2 is not a multiple of 100.Which of the following is possible value of the unit digit of b/2a? 5)The polynomial (ax^2+bx+c)(ax^2-dx-c) ,ac is not equal to 0,has 6)The number of real solution of 1+mod(e^x-1)=e^x(e^x-2) is 7) The equation sqrt(x+1) -sqrt (x-1) =sqrt(4x-1) __________________
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2)The number of solution of log 4 (x-1) = log2 (x-3) is
a) 2 b) 1 c) 3 d) 10
ans is 2
Little Star
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6)The number of real solution of 1+mod(e^x-1)=e^x(e^x-2) is
a)0 b) 1 c) 2 d) 4
ans is 4
Little Star
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Soln.
Solve the eqn and get x=1/3
Option (b) is correct...
Regards,
Dipanjan........
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Son:Try to find out the value of its actually becomes 5/4.But its not satisfying the eqn.
So option (a) is correct....
Regards,
Dipanjan.........
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The answer of Q3 is 0.
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