3 years ago

HELPPPPPPPPPPPPPPPPPPPP

Mathematics

1 answer:

otez555 [7]3 years ago

3 0

The answer is A(45) = -211

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Find an equivalent ratio in simplest terms:<br> 64 : 24<br> Submit Answer

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3 years ago

If there are four teams in a league, how many games will have to be played so that each team plays every other team once?

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Answer:

6 matches

Step-by-step explanation:

Let’s call the teams A B C D

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3 years ago

Prove that 1+cosA/sinA + sinA/1+cosA=2cosecA

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$\frac{1+cos\alpha}{sin\alpha}+\frac{sin\alpha}{1+cos\alpha}=2cosec\alpha\\\\L=\frac{(1+cos\alpha)(1+cos\alpha)+sin\alpha\cdot sin\alpha}{sin\alpha(1+cos\alpha)}=\frac{1+2cos\alpha+cos^2\alpha+sin^2\alpha}{sin\alpha(1+cos\alpha)}\\\\=\frac{1+2cos\alpha+1}{sin\alpha(1+cos\alpha)}=\frac{2+2cos\alpha}{sin\alpha(1+cos\alpha)}=\frac{2(1+cos\alpha)}{sin\alpha(1+cos\alpha)}\\\\=\frac{2}{sin\alpha}=2\cdot\frac{1}{sin\alpha}=2cosec\alpha=R$

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3 years ago