Question

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Uestion


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Solve 4(i)and(ii)
And 5(i)​

Answer 1

Mate

YOUR SOLUTION IS IN PICTURE

Answer 2

Answer:

Step-by-step explanation:

6)

1+icons/1-2i cos

=>1+cos/1-2i cos ×1+2cos /1+2i cos

=>1-(1+2icos)+I cos (1+2i cos)/1-4 i²cos²

=>1+2i cos+I cos +2i²cos²/1+4cos²

=>1-2 cos ²+3icos /1+4cos ²

Hope it will help you