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

If you think a hazard is serious, what is the best way to ensure that OSHA will conduct a site inspection? Help
Sixty years ago, your mother invested $4,500. Today, that investment is worth $430,065.11. What is the average annual rate of return she earned on this investme
In a population of flowers growing in a meadow, C1 and C2 are autosomal codominant alleles that control flower color. The alleles are polymorphic in the populat
simplify (45) - (+14)​
Is it appropriate to send an email and call the individual the same day to ask if they have received your email?
f(x)=3x2+10x-25 g(x)=9x2-25 Find (f/g)(x).
What’s the next number is this series 31,29,24,22,17,
What is the solution to the inequality below?√x<6​
Explain how to solve a system of three equations using the elimination method.
Given that ∆MTW ≅ ∆CAD, which angles are corresponding parts of the congruent triangles? ∠T ≅ ∠C ∠T ≅ ∠A ∠T ≅ ∠D