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NEW JOYTHI PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-QUESTIONS FROM COMPETITIVE EXAMS
- If alpha" and "beta are the roots of the equation x^(2)-7x+1=0, then t...
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- If alpha " and "beta are different complex numbers with |beta|=1, then...
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- If omega is a complex cube root of unity, then the value of sin{(omega...
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- Let z=(11-3i)/(1+i). If alpha is a real number such z-ialpha is real, ...
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- Let z(1)" and "z(2) be the roots of the equation z^(2)+pz+q=0, where p...
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- If alpha, beta, gamma are the cube roots of a negative number p, then ...
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- The magnitude and amplitude of ((1+isqrt(3))(2+2i))/((sqrt(3)-i)) are ...
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- If 1+x^(2)=sqrt(3)x, then sum(n=1)^(24)(x^(n)-(1)/(x^n))^(2) is equal ...
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- If alpha and beta are the roots of the equation ax^(2)+bx+c=0 then (a...
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- If one root of the equation x^(2)+px+12=0 is 4, while the equation x^(...
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- Given tan A and tan B are the roots of x^(2)-ax+b=0. The value of sin^...
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- The number of roots of the equation |x|= x^(2)+x-4 is
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- If alpha, beta are the roots of the equation x^(2)-px+q=0, prove that ...
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- If sec alpha" and cosec "alpha are the roots of the equation x^(2)-px+...
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- Let a(n)=i^((n+1)^2), where i=sqrt(-1)" and "n=1, 2, 3,"………..". Then t...
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- If (5z2)/(11z1) is purely imaginary, then the value of |(2z(1)+3z(2))/...
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- If 2alpha= -1-isqrt(3)" and"2beta= -1+isqrt(3), then 5alpha^(4)+5beta^...
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- If (i^(4)+i^(9)+i^(16))/(2-i^(8)+i^(10)+i^(3))=a +ib, then (a,b) is
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- If (sqrt(5)+sqrt(3)i)^(33)= 2^(49)z, then modulus of the complex numbe...
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- If a is positive and if A and G are the arithmetic mean and the geomet...
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