Give the following products in polar form: ` [3(cos 225^0+i sin225^0)] [6(cos 45^0 + i sin 45^0)]`

Give the following products in polar form: [2(cos 210^0+isin210^0)][4(cos120^0+isin120^0)]

Give the following products in polar form: [2(cos0^0+isin0^0][4(cos90^0+isin90^0)]

Give the following quotients in polar form: (9(cos90^0+isin90^0))/(3(cos45^0+isin45^0)

Give the following quotients in polar form: (i) (9(cos90^(@)+isin90^(@)))/(3(cos45^(@)+isin45^(@))) (ii) (7(cos135^(@)+isin135^(@)))/(14(cos90^(@)+isin90^(@))) .

cos 45^(@)-sin 45^(@)=?

Give the following in polar form: (i) sin120^(@)-icos120^(@) (ii) [2cos210^(@)+isin210^(@))][4(cos120^(@)+isin120^(@))] (iii) [3(cos225^(@)+isin225^(@))][6(cos45^(@)+isin45^(@))] .

cos225^(@)+sin195^(@)=

Change the following complex numbers to Cartesiasn form: 5(cos270^0 + i sin 270^0)

Write down the following complex number in polar form: Quotient of 12(cos150^(@)+i sin150^(@)) and 3(cos60^(@)+i sin60^(@))

Find the value of the following (i) tan 60^@ xx cos 30^@ (ii) sin 45^@ * cos 45^@ – sin^2 30^@ (iii) 2 sin 45^@* cos 45^@*tan 45^@ (iv) cos 30^@* cos 45^@ – sin 30^@* sin 45^@ (v) tan 30^@* sec 45^@ + tan 60^@* sec 30^@