Question

find the distance b/w the points P(a cos 35,0) and Q(0,a cos 65).

Answer 1

$pq = \sqrt{ {(a \cos(35 ) - 0)}^{2} + {(0 - a \cos(65)) }^{2} } \\ = \sqrt{ {a}^{2} { \cos(35) }^{2} + {a}^{2} { \cos(65) }^{2} } \\ = \sqrt{ {a}^{2} ( { \cos(35) }^{2} + { \sin(35) }^{2}) } \\ = a \sqrt{1} \\ = a$

Answer 2

Answer:

answer of this question is A