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svp [43]
3 years ago
8

What is Cot(x) / cos(x) ?

Mathematics
1 answer:
lutik1710 [3]3 years ago
8 0

Answer:

cosecx

Step-by-step explanation:

\frac{cotx}{cosx}  \\  =  \frac{1}{tanx}  \div cosx \\  = (1 \div  \frac{sinx}{cosx} ) \div cosx \\  =  \frac{cosx}{sinx}  \times  \frac{1}{cosx}  \\  =  \frac{1}{sinx}  \\  = cosecx

Note that:

tanx =  \frac{sinx}{cosx}

cotx =  \frac{1}{tanx}  =  \frac{cosx}{sinx}

cosecx =  \frac{1}{sinx}

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Answer:

Step-by-step explanation:

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7500 dollars is placed in an account with an annual interest rate of 7.75%. To the nearest year, how long will it take for the a
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Answer:

It will take 55 years for the account value to reach 38200 dollars

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

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It will take 55 years for the account value to reach 38200 dollars

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Answer:

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