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Daniel [21]
3 years ago
13

In triangle ABC, and C is a right angle. Find the value of the trig function find the sec(A) if C=25, B=20, A=15

Mathematics
1 answer:
asambeis [7]3 years ago
5 0

Answer:

sec A = 5/4

Step-by-step explanation:

Sec of an angle is hypotenuse/adjacent side

In your problem, sec A = 25/20 = 5/4

It helps if you can draw a figure of the problem.  Make sure you memorize the definition of each trig function

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Step-by-step explanation:

We can work both these problems at once by finding an applicable rule.

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where O(h²) is the series of terms involving h² and higher powers. When divided by h, each term has h as a multiplier, so the series sums to zero when h approaches zero. Of course, if n < 2, there are no O(h²) terms in the expansion, so that can be ignored.

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