livesk4227 livesk4227
  • 14-03-2024
  • Mathematics
contestada

Find the exact value of cos(α−β) given sin(α)=−4/5​ and cos(β)=5/8​, for α in quadrant III and β in quadrant II.
a) −15−4√39/40​​
b) 15−4√39/40​​
c) −15+4√39/40​​
d) 15+4√39/40​​

Respuesta :

Otras preguntas

For questions 1-4...solve each inequality for x. 1. x + 13.5 < 19 2. 23 > x - 7 3. 45x < 405 4. 8x > 48
Which word in the sentence is the indirect object? Carol gave Steve her old computer. a. Steve b. her c. Carol d. computer
Simplify 20 + (2 + r).
factor each expression 45c+ 10d
An element with characteristics of a metal and a non-metal
In a college of exactly 2860 students , exactly 70% are male. What is the number of female students
If there is the same slope but different y-intercepts can there paths ever cross?
What are some of the advantages organisational structure
what did gorgewashington carver do
Areas with higher population density are shown in solid, dark green on the map above. Which of the following statements about population density in the region i