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

Write down the following complex number in polar form: Quotient of 12 (cos 150^0 + i sin 150^0) and 3(cos 60^0+i sin 60^0)

Write down the following complex number in polar form: Product of 2 (cos 30^0+isin 30^0) and 3 (cos 90^0+isin90^0)

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

Prove that : (cos 20^0 - sin 20^0)/(cos 20^0 + sin 20^0) = tan 25^0

Find the values of the following: sin75^0 (ii) cos75^0 (iii) sin15^0 (iv) cos15^0

The polar form of sin 75^(@)+i cos 75^(@) is

Which of the following number(s) is/are rational? (a) sin15^0 (b) cos15^0 (c) sin15^0cos15^0 (d) sin15^0cos75^0

Prove that : (cos 10^0 - sin 10^0)/(cos 10^0 + sin 10^0) = tan 35^0