spokharel1920
spokharel1920 spokharel1920
  • 02-05-2021
  • Mathematics
contestada

19. Find the value of:
4/3tan^2 30° + Sin^2 60° – 3Cos^2 30°+ 3tan^2. 60° - 2tan^2 45°​

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 02-05-2021

9514 1404 393

Answer:

  107/18

Step-by-step explanation:

Your calculator and/or knowledge of trig function values can help you evaluate this.

  = 4/3(1/3) +3/4 -3(3/4) +3(3) -2(1)

  = 4/9 +3/4 -9/4 +9 -2

  = 107/18

___

tan(30°) = 1/√3

tan(45°) = 1

tan(60°) = √3

sin(60°) = cos(30°) = √3/2

Ver imagen sqdancefan
Answer Link

Otras preguntas

What is the solution to this equation? 3x - 6 = 18 A. x = 72 B. x = 36 C. x = 4 D. x = 8
is -27 a rational number or irrational number
what are symbols or words that represent positive and negative integers
Which polarizing vegetable is always eaten at a British Christmas meal
Nancy wants to put a birdseed mix in her birdfeeder. The mix is 20% wild bird seed and 80% sunflower seed. Her birdfeeder can hold 8 cups of birdseed. How much
Can anyone help me on all of the questions cause i do t understand them except for the first one?
What year was christmas declared a federal holiday in the united states?
Muscles in the stomach aid in the digestive system aid by
Can you help with both
James was observing cells under a microscope. He observed some cells which had a layer outside the plasma membrane. What is this layer called? A. Cell membrane