Simplify the following expression involving complex numbers: (1-i)2-5i – (3+4i), Write the result in trigonometric form. A 5.6(cos 135 + i sin 135) B 6.89(cos 120 + i sin 120) c) 5(cos 233.13 + i sin 233.13) D 5(cos 125 + i sin 125)

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A: Topic - complex numbers

Q: 1. Simplify. (6-2)³ - (5 +5²) O-14 -32 34 5

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A: The given series is ∑n=1∞x-3nn25n. Let an=x-3nn25n, then an+1=x-3n+1n+125n+1. Apply ratio test,…