Question

Find the distance between the following pair of points :

(a sina, - b cos a) and (-a cos a, b sin a)

PLEASE ANSWER MY QUESTION PROPERLY​

Answer 1

Answer:

The distance d between two points (x1,y1) and (x2,y2) is given by the formula.

d=√(x1-x2)*2+(y1-y2)*2

The two given points are (a sin a,-b cos a) and(-a cos a,b sin a)

The distance between these two points is

d=√(a sin a+ a cos a)*2-(-b cos a-b sin a)*2

=√a*2 sin a+cos a)*2+b*2(-1)*2(cos a+sin a)

=√a*2(sin a+cos a*2)+b*2(cos a+sin a)

=√(a*2+b*2)(sin a+cos a)

Therefore distance is (sin a+cos a)√(a*2+b*2).

HOPE THIS ANSWER HELPS YOU...☺

NOTE: The square root belongs to total equation.

Answer 2

Step-by-step explanation:

(cosa+sina)root over (a*2+b*2)