3 years ago

If f(x)=x+1/x-1 and g(x)=1/x, find f(-2x)

Mathematics

1 answer:

dezoksy [38]3 years ago

6 0

Answer:

First notice that θ is in quadrant I, where the sine and tangent will also be positive.

Then draw the angle in quadrant I. Drop a perpendicular to the x axis.

Since cosθ= 7/25, label the horizontal leg 7, and the hypotenuse 25; the vertical leg will be 24 by Pythagorean theorem.

Then sinθ=vertical/hypotenuse= 24/25 and tanθ= vertical/horizontal= 24/7

Step-by-step explanation:

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