Given $Z_1 = 5[\\cos50^\\circ + i\\sin50^\\circ]$ and $Z_2 = 2[\\cos65^\\circ + i\\sin65^\\circ]$, find $Z_1Z_2$
University of Ilorin MTH101 integral past question
- $25[\\sin115^\\circ + i\\cos115^\\circ]$
- $\\frac{5}{2}[\\cos115^\\circ + i\\sin115^\\circ]$
- $10[\\sin115^\\circ + i\\cos115^\\circ]$
- $25[\\sin15^\\circ + i\\cos15^\\circ]$
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