Question

hey plz help
no4
it's answer is (root 5 -2)
plz help

Answer 1

hey mate
here's the solution

Answer 2

4tanö=2. (theeta be ö)

=>tanö=1/2

=>perpendicular/base= 1/2

Let perpendicular be k and base be 2k. (k taken as constant)

Hypotenuse = (4k²+k²)½

=k(5)½

4tanö-2cosö/sinö

=2-2*2k/k(5)½/k/k(5)½

=2(5)½-2/2

=(5)½-1

=root5 - 1(answer)