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valkas [14]
3 years ago
8

Cosx=5/8

Mathematics
1 answer:
sertanlavr [38]3 years ago
5 0

Answer:

All the trigonometric ratios are mentioned and the value of x = 51.32°

Step-by-step explanation:

we are given the value of cosx = \frac{5}{8}

We have to find all the other 5 trigonometric values.

sinx = \sqrt{1-cos^{2}x } = \sqrt{1-(\frac{5}{8})^{2} }

       = \sqrt{\frac{39}{64}} = \frac{\sqrt{39}}{8}

tanx = \frac{sinx}{cosx} = \frac{\sqrt{39} }{5}

cosecx = \frac{8}{\sqrt{39} }

secx = \frac{8}{5}

cotx = \frac{1}{tanx} = \frac{5}{\sqrt{39} }

These are the values of the trigonometric functions.

cosx = \frac{5}{8}

x = cos^{-1} \frac{5}{8}

x = 51.32°

The other acute angle = 90 - 51.32 = 38.68°

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Answer:

Answer is 1/13

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If P(A) = 0.3 and P(B) = 0.6 what is P(A or B) if the two events are independent?
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