2 years ago

X-8>-3 inequality solution

1 answer:

6 0

You can add 8 to both sides so you get
x>5

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Given expression is,

$\text{cot}A=\frac{1}{2}(\text{cot}\frac{A}{2}-\text{tan}\frac{A}{2})$

To prove this identity we will take the right side of the identity,

$\frac{1}{2}(\text{cot}\frac{A}{2}-\text{tan}\frac{A}{2})=\frac{1}{2}(\frac{1}{\text{tan}\frac{A}{2}}-tan\frac{A}{2})$

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= cot A

Hence right side of the equation is equal to the left side of the equation.

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steposvetlana [31]

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