/ cos Z = 20/24 (cos Z)^2 = 400/576 1 - ( sin Z )^2 =400/576 ( sin Z )^2 = 1 - 400/576 ( sin Z )^2 = 176/576 sin Z = 1/6 x √(11) Tan Z = sin z/ cos z = 1/6 x √(11) : 20/24 = 5√(11) Tan X = Tan (90-Z) = Cotan Z = 1 / Tan Z = 1 / 5√(11) = √(11) / 55
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bayuarijadmiko
ada 1-400/576. satunya dapat dari mana itu?
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..Y.20.Z
/ cos Z = 20/24
(cos Z)^2 = 400/576
1 - ( sin Z )^2 =400/576
( sin Z )^2 = 1 - 400/576
( sin Z )^2 = 176/576
sin Z = 1/6 x √(11)
Tan Z = sin z/ cos z = 1/6 x √(11) : 20/24 = 5√(11)
Tan X = Tan (90-Z) = Cotan Z = 1 / Tan Z = 1 / 5√(11) = √(11) / 55