SOLUTION: xyz is a right angled triangle at y if 2yz = 4xy find 1- Sin power of 2 x - cos 2 z 2 sin x X Cos z - tan Z how can i solve this ?

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Question 921678: xyz is a right angled triangle at y if
2yz = 4xy find
1- Sin power of 2 x - cos 2 z
2 sin x X Cos z - tan Z
how can i solve this ?
Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!
xyz is a right angled triangle at y if
2yz = 4xy find
1-sinēx - cosēz
2sin(x)cos(z) - tan(z) 
2yz = 4xy

Divide both sides by 2y

z = 2x

x and z are complementary because they are
the two acute angles of a right triangle.

So z+x = 90° and z = 90°-x

90°-x = 2x
  90° = 3x
  30° = x

And since z = 2x

z = 2(30°) = 60°

----

1 - sinēx - cosēz
1 - sinē(30°) - cosē(60°)
1 -  - 
1 -  - 
1 - 


---

2sin(x)cos(z) - tan(z)

2sin(30°)cos(60°) - tan(60°)







Edwin
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