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mrs_skeptik [129]
2 years ago
5

What's the inverse of x+y=7

Mathematics
1 answer:
serious [3.7K]2 years ago
4 0

Answer: x-y=7

Step-by-step explanation:

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Which trigonometric functions are negative in the fourth (IV) quadrant?
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Explanation:

On the unit circle we have some point (x,y) such that x = cos(theta) and y = sin(theta). The sine corresponds to the y coordinate of the point on the circle. Quadrant IV is below the x axis which explains why sine is negative here, since y < 0 here.

Since sine is negative, so is cosecant as this is the reciprocal of sine

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In quadrant IV, cosine is positive as x > 0 here. So the ratio tan = sin/cos is going to be negative. We have a negative over a positive when we divide.

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