Question

Find out the polar form of the complex number 1-i from the following options. O cos A + i sin tä o COS 3 + i sin 37 4 O 1 cos CE + i sin O cos + i sin ſ

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Abdul-Rahim Taysir

Answer 1

I Need to find out the polas form of the complex number 1 +i ti & divide +T (. Mulliply with Hi) (+) (1-P)Citi R17 21) (i) (1) 292 1-1+z 1-(-1) = 21 ((ab) (arb) = 9²6 & atb) - atb tab) write in polar form. i= Cos ofisino Coso=0 sino-1 o-costo) o=sint (1) o= π 31 o= I Therefore, polar form is Cas (I)+isin (I) fourth option is correct. f(3) = 23-1 Need to find f'(2) at 3=1 f(2)=(3+2)2()-0) - (03-0) (1+0) (+21) 23+4i-23 ti 51 (atai)? (@tai) ? 51 At 3 = f'(i)= 51 Estare (62 Third option is correct. ..58 (-:722-1)