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y = 7x.
cot x = √2.
sin x cot x csc x = √2
convert to sin x and cos x:
sin x * cos x / sinx * 1/ sin x = √2
cos x / sin x = √2
cot x = √2 (answer).
the areas of two similar triangles are 18 cm2 and 8 cm2. one of the sides of the first triangle is 4.5 cm. what is the length of the corresponding side of the other triangle?