(a) The Cartesian coordinates of a point are (1,1). (i) Find polar coordinates (r,θ) of the point, where r>0 and 0≤θ<2π. r= θ= (ii) Find polar coordinates (r,θ) of the point, where r<0 and 0≤θ<2π. r= θ= (b) The Cartesian coordinates of a point are (23–√,−2). (i) Find polar coordinates (r,θ) of the point, where r>0 and 0≤θ<2π. r= θ= (ii) Find polar coordinates (r,θ) of the point, where r<0 and 0≤θ<2π. r= θ=

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.