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A DAS GUPTA-COMPLEX NUMBERS-EXERCISE
- If x=sqrt(-2)-1 find he value of x^4+4x^3+6x^2+4x+9
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- If a=(1+i)/sqrt(2) find the value of a^6+a^4+a^2+1
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- If sqrt(a-ib)= x-iy , prove that sqrt(a+ib)=x+iy.
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- If root(3)(a+ib) = x + iy, prove that : root(3)(a-ib) = x- iy .
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- (x+iy)^(1/3) =(a+ib) then prove that (x/a+y/b)=4(a^2-b^2)
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- Express (1+a^2)(1+b^2) as the sum of two squares.
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- If sqrt 7-24i =x+iy and x=+-4,y=+-3 then sqrt 7-24i=?
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- Find the square root of 8-15i.
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- If z^2 = 12sqrt(-1) , find the complex number z .
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- Find the square root of x^2/y^2+y^2/x^2+1/(2i)(x/y+y/x)+31/16 .
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- Find the conjugate, modulus and argumetn of sqrt(2-)sqrt(2i)
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- If z =frac((1+i)(1+sqrt3i)^2)(1-i) , find |z| , arg z and barz .
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- Write 1+i/2-i in the trigonometrical form.
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- If z1= 3i and z2 = -1 -i , find the value of arg z1/z2 .
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- Find the modulus and amplitude of frac1((1-i)^2)-frac1((1+i)^2) . Als...
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- Solve the equation z^2 +|z|=0 , where z is a complex number.
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- Find the complex number z if z^2+barz=0
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- Solve for z: z^2 = (ibarz)^2 .
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- which of the foolowing satisfies |z+1|=z+2+2i
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- Determine the complex numbers which satisfy the equation -ibarz=z^2.
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