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Prove the equation cos(a+b).cos(a-b)=cos^2a - sin^2b. show your solution.
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Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?
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Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points
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Mathematics, 21.06.2019 21:50
Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x
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Prove the equation cos(a+b).cos(a-b)=cos^2a - sin^2b. show your solution....
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