doubletbandzv2669 doubletbandzv2669
  • 11-10-2019
  • Mathematics
contestada

b. Use the sine and cosine values of special angles to find the sum: sin30+cos60.

Respuesta :

PollyP52 PollyP52
  • 11-10-2019

Answer:

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.

Answer Link

Otras preguntas

john spends $112 total. He buys 11 items total. Staplers are $7 and 3 hole punches are $12. how many of each did he purchase?
Hair color is an inherited trait. In marci's famliy, her mother has brown hair. Her father has blond hair. The family has 6 children in all. Of 6 children, 1/3
when did region 4 become part of the united states
HELP PLEASE I WOULD APPRECIATE IF SOMEONE HELPS PLEASE AND THANKS
Explain the origins of the conflict in Cuba. Who was fighting? Why?
Help #3??? I really need help!
‼️‼️‼️ PLEASE HELP‼️‼️‼️ A group of people from various hospitals agreed to participate in a study about a new medication for diabetes
Which of these DOES NOT affect the brightness of a star? A.Magnitude B.Age of the star C.Distance from earth D.Distance from other star
Ella ______________ a la casa la semana pasada. A. llego B. llegó C. llegaron D. llegaste
PLEASE HELP! SEE THE IMAGES BELOW! 30 POINTS