jordanrini
12.10.2019 •
Mathematics
B. use the sine and cosine values of special angles to find the sum: sin30+cos60.
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Ответ:
sin30+cos60 = 1.
Step-by-step explanation:
Use the right angles triangle with angles 90-8=60-30.
The hypotenuse = 2 and the 2 legs have values of 1 and √3.
The 30 degree angle is opposite the leg of measure 1.
sin 30 = opposite / hypotenuse 1/2 and cos 60 = adjacent / hypotenuse 1/2 so the sum is 1.
Ответ:
Answer
3
Step-by-step explanation: