Find the limit of f as or show that the limit does not exist. Consider converting the function to polar coordinates to make finding the limit easier. f(x, y)

Step-by-step explanation:

Given

Required

becomes

Multiply by 1

Express 1 as

So, the expression becomes:

Rewrite as:

In limits:

So, we have:

Convert to polar coordinates; such that:

So, we have:

Expand

Factor out

Cancel out

Express as

So:

In trigonometry:

So, we have:

Evaluate the limits by substituting 0 for r

Since the denominator is non-zero; Then, the expression becomes 0 i.e.

So,

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d