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Setler [38]
2 years ago
6

Can someone help me out?

Mathematics
2 answers:
Bingel [31]2 years ago
6 0

Answer: It would be C

Step-by-step explanation:

because on Sat. there were 80 discs and on Mon. there were 55 discs, so 55-80=25 and C is your answer

larisa86 [58]2 years ago
6 0
The answer is c lol good luck
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Step-by-step explanation:

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anyanavicka [17]

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Step-by-step explanation:

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Show that √(1-cos A/1+cos A) =cosec A - cot A​
Gennadij [26K]

Hi there!

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We can begin by multiplying by its conjugate:

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\sqrt{\frac{(1-cos^2A)}{(1+cosA)^2}} =\\\\\sqrt{\frac{(sin^2A)}{(1+cosA)^2}} =

Take the square root of the expression:

{\frac{sinA}{1+cosA} =

Multiply again by the conjugate to get a SINGLE term in the denominator:

{\frac{sinA}{1+cosA} * {\frac{1-cosA}{1-cosA} =\\

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{\frac{sinA(1-cosA)}{sin^2A} =

Cancel out sinA:

{\frac{(1-cosA)}{sinA}  =

Split the fraction into two:

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Recall:

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Simplify:

\frac{1}{sinA} + \frac{cosA}{sinA} = \boxed{cscA - cotA}

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2 years ago
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lisabon 2012 [21]

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