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CENGAGE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
- Solve the equation x^4-5x^2+4=0.
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- The complex number z satisfies z+|z|=2+8i. find the value of |z|-8
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- Solve (x^2-2x-3)/(x+1)=0.
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- If omega is a cube root of unity and (1+omega)^7=A+Bomega then find th...
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- Solve (x^3-4x)sqrt(x^2-1)=0.
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- The complex number sinx+icos2x and cosx-isin2x are conjugate to each o...
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- Solve (2x-3)/(x-1)+1=(9x-x^2-6)/(x-1)dot
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- The points, z1,z2,z3,z4, in the complex plane are the vertices of a pa...
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- Using differentiation method check how many roots of the equation x^3-...
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- If z=x+iy and w=(1-iz)/(z-i), then |w|=1 implies that in the complex ...
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- If the difference between the roots of the equation x^2+""a x""+""1...
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- |z-4| < |z-2| represents the region given by: (a) Re(z) > 0 (b) Re(z) ...
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- Find how many roots of the equations x^4+2x^2-8x+3=0.
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- If z=[(sqrt(3)/2)+i/2]^5+[((sqrt(3))/2)-i/2]^5 , then a. R e(z)=0 b. I...
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- How many real solutions does the equation x^7+14 x^5+16 x^3+30 x-560=0...
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- The complex numbers z=x+iy which satisfy the equation |(z-5i)/(z+5i)|=...
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- Solve sqrt(5x^2-6x+8)-sqrt(5x^2-6x-7)=1.
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- The smallest positive integer n for which ((1+i)/(1-i))^n=1 is (a)8...
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- Solve sqrt(3x^2-7x-30)+sqrt(2x^2-7x-5)=x+5.
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- If the cube roots of unity are 1,omega,omega^2, then the roots of the ...
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