From an aeroplane vertically above a straight horizontal line, the angles of depression of
two consecutive kilometer stones on the
opposite side of the aeroplane are found to be
U and
(1) Find the distance of the aeroplane from
kilometer stone at an angle of depression
0 Find the distance of the aeroplane from
kilometer stone at an angle of depression
B
tin Show that the height of the aeroplane is
tan +tan B
(iv) Find the distance between two consecu-
tive kilometer stones
Write the formulae used in the solution

step-by-step explanation:

you divide the denominator by the numerator on both sides and if the quotients are equal then the fractions are equivalent

sup

step-by-step explanation:

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )