Vẽ một mặt phẳng tọa độ có 2 hàm số y=-4x , y=1/4
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A boy standing on the bank of a river sees the top of a tree on the other bank at an angle of elevation 54 degrees. Stepping 20 meters back, he sees it at an angle of elevation 27 degrees. Find the height of the tree
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Step-by-step explanation:
[y=-4x]
[y=1/4]
[-4x = 1/4]
y= -4 [1/-16]
-4 [-1/16 ] = 1/4
y=1/4
y=1/4 , x= -1/16
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