book Maths Puzzle Numerical Ability

(i+root3)^100 +(i-root3)^100 + 2^100=?

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book Other Question

triplin the greater of two consecutive even integers gives the same result as subtracting 10 fom the lesser even integer. what are th integers? What is the perimeter of a rhombus-shaped highway sign with a 20-centimeter side?

a-40 centimeters
b-80 centimeters
c-400 centimeters
d-20 centimeters