tracijp
10.01.2020 •
Mathematics
Find sin 2x, cos 2x, and tan 2x from the given information.
cos x = 15/17
csc x < 0
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Ответ:
The trigonometry values are:, and
The given parameter is:
If csc(x) is less than 0, then sin(x) is less than 0.
Using the following trigonometry ratio,
Substitute
Expand
Collect like terms
Take LCM
Take square roots
Recall that, the sine of the angles is negative.
So, we have:
sin(2x) is then calculated as:
This gives
cos(2x) is then calculated as:
This gives
Take LCM
Lastly, tan(2x) is calculated using:
So, we have:
Read more about trigonometry ratios at:
link
Ответ:
Step-by-step explanation:
Ответ: