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max2010maxim [7]
3 years ago
13

Sec 5A = cosec 7A, prove that A = 7.5°​

Mathematics
1 answer:
weeeeeb [17]3 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

Using the cofunction identity

sec(90 - x)° = cscx° , then

7A = 90 - 5A ( add 5A to both sides )

12A = 90° ( divide both sides by 12 )

A = 7.5°

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Answer:

Each CD would be $10.99

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$48.96-5.00=43.96

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4 0
3 years ago
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Simplify and write the trig expression in terms of sin and cos
dsp73

We have:

cot(-x)cos(-x)+sin(-x)=-\frac{1}{f(x)}

Then we use trigonometric identities to change the negative sign of the trigonometric functions, so:

-sin(x)-cot(x)cos(x)=-\frac{1}{f(x)}

We clear f(x):

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6 0
1 year ago
which will have a higher effective interest rate a payday loan for $1700 that is due in 16 days with a fee of $100, or a payday
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3 years ago
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The value of a car is expected to decrease exponentially. Which formula can you use to predict the value of the car for a given
IgorLugansk [536]
Hey there!

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Let's rule out our other options:

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