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rakanmadi87
19.10.2019 •
Mathematics
How do i solve this trigonometry question? (section 7.3)
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Ответ:
Now, a tangent function is an odd function, and you can find the proof on the internet, so we can say that:
Now, we just need to find what
Since
Thus, we can say:
Using difference formula to simplify the expression, we know that the difference formula states:
The exact value for
The exact value for
Thus:
Rationalise the denominator:
Expand the perfect square:
Ответ:
answer:
try to figure it out if you cant just try your best. have a nice day
step-by-step explanation: