kayericaedwards kayericaedwards
  • 24-04-2018
  • Mathematics
contestada

Verify that cos (270° - q) = -sin q is an identity.

Respuesta :

Blitztiger
Blitztiger Blitztiger
  • 24-04-2018
See the attached picture. cos(270 - q) = adjacent/hypotenuse for the red triangle = -a/c. Note the -a is because this is in the -x direction.
sin q = a/c, so -sin q = -a/c.
Therefore, cos(270 - q) = -sin q is true.
Ver imagen Blitztiger
Answer Link

Otras preguntas

If you are creative and you know how to do digital art I need you help !!! I want a picture that describes school and reading in a creative way please make me
solve pls brainliest
7=3 over 4x what is x?
3. She ………. in this school for ten years but none of the other teachers like her. A. taught B. has taught C. was teaching D. is teaching 4. Watching television,
Determine whether the following sets form subspaces of R3 . (a) {(x1,x2,x3)T|x1+x3=1} (b) {(x1,x2,x3)T|x1=x2=x3}
An interior designer wants to decorate a newly constructed house. The function f (x) = 25x2 – 100 represents the amount of money he earns per room decorated, wh
Respond to the following based on your reading. 1. Name the three common states of matter on earth. 2. Which states of matter have a set shape? Explain why this
How did democracy in the states evolve over time?
how to use union in the real world?​
Use the remainder theorem to determine whether x=-4 is a solution of [tex] {x}^{6} + {5x}^{5} + {5x}^{4} + {5x}^{3} + {2x}^{2} - 10x - 8[/tex]​