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NEW JOYTHI PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-QUESTIONS FROM COMPETITIVE EXAMS
- The number of integral values of b, for which the equation x^(2)+bx-16...
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- If (1+i) is a root of the equation x^(2)-x+(1-i)=0, then the other roo...
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- If the roots of the quadratic equation 3x^(2)+2x+a^(2)-a=0 in x are of...
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- The number of real roots of the equation |x|^(2)-3|x|+2=0 is
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- Let a,b, c be positive real numbers. If (x^(2)-bx)/(ax-c)=(m-1)/(m+1) ...
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- The equation k sinx + cos2x= 2k-7 has a solution if
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- If z(k)=e^(i thetak) for k= 1, 2, 3, 4 where i^(2)= -1, and if |sum(k=...
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- If z=(-1)/(2)+i(sqrt(3))/(2), " then "8+10z+7z^(2) is equal to
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- Let z ne 1 be a complex number and let omeg= x+iy, y ne 0. If (omega- ...
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- The locus of z such that |(1+iz)/(z+i)|=1 is
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- The value of sum(k=0)^(n)(i^(k)+i^(k+1)), where i^(2)= -1, is equal to
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- Let z(1)=(2sqrt(3)+ i6sqrt(7))/(6sqrt(7)+ i2sqrt(3))" and "z(2)=(sqrt(...
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- If the equation ax^(2)+bx+c=0, a gt 0, has two distinct real roots alp...
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- If alpha " and "beta are the distinct roots of ax^(2)+bx+c=0, where a,...
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- If the equations x^(2)+ax+bc=0 and x^(2)+bx+ca=0 have a common root an...
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- If y= x+(1)/(x), x ne 0, then the equation (x^(2)-3x+1)(x^(2)-5x+1)=6x...
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- Let x(1)" and "y(1) be real numbers. If z(1)" and "z(2) are complex nu...
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- Let z(1)" and "z(2) be complex numbers such that z(1)+ i(bar(z2))=0" a...
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- If z is a complex number such that z+|z|=8+ 12i, then the value of |z^...
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- The value of (1)/(i)+(1)/(i^2)+(1)/(i^3)+"……"+(1)/(i^(102) is equal to
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