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Without expanding the determinant at any...

Without expanding the determinant at any stage, find `K in R` such that
`|{:(4i,8+i,4+3i),(-8+i,16i,i),(-4+Ki,i,8i):}|` has purely imaginary value .

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MOTION-COMPLEX NUMBER -EXERCISE - 3 (LEVEL -III) SUBJECTIVE - JEE ADVANCED
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  14. If alpha & beta are any two complex numbers, prove that |alpha+beta|...

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  18. Given, z=cos.(2pi)/(2n+1)+i sin.(2pi)/(2n+1), 'n' a positive integer ...

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