Pluto has estimated diameter of 1420 miles, approximately 1/5 the diameter of the earth using the estimated diameter of pluto, w
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Answer and Step-by-step explanation:
one divided by (in parentheses) x minus eight should look like this:
This is a graph of this expression.
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First lets see the pythagorean identities
So if we have to solve for sin theta , first we move cos theta to left side and then take square root to both sides, that is
Now we need to check the sign of sin theta
First we have to remember the sign of sin, cos , tan in the quadrants. In first quadrant , all are positive. In second quadrant, only sin and cosine are positive. In third quadrant , only tan and cot are positive and in the last quadrant , only cos and sec are positive.
So if theta is in second quadrant, then we have to positive sign but if theta is in third or fourth quadrant, then we have to use negative sign .