Question

find the value of x it's a trignometry question​

Answer 1

Step-by-step explanation:

5/x = base / hypotenuse = cos 36 °

therefore 5/x = root 5 +1 /4 ( cos 36= root 5 + 1/4

therefore 5 = x ( root 5 +1 /4 )

x= 5 *4 / root 5+ 1

x = 20 / root 5 +1

x = 20 *( root 5-1) / root 5+1 * (root 5-1)

x = 20 root 5 - 20 / 5 -1

x= 20 root 5 -20 /4

x= 5 root 5 - 5. ( taking 4 common and cancelling it )