sara3695 sara3695
  • 04-05-2020
  • Mathematics
contestada

sin(90-x)=cos(x) use sum or difference formula to solve​

Respuesta :

mirai123
mirai123 mirai123
  • 04-05-2020

Answer:

[tex]sin(90-x)=cos(x)[/tex]

So,

[tex]sin(a-b)=sin(a)cos(b)-cos(a)sin(b)[/tex]

[tex]sin(90\º-x)=sin(90\º)cos(x)-cos(90\º)sin(x)[/tex]

Once, [tex]sin90\º=1[/tex] and [tex]cos(90\º)=0[/tex]

[tex]sin(90\º-x)=1cos(x)-0sin(x)[/tex]

[tex]sin(90\º-x)=cos(x)[/tex]

Answer Link

Otras preguntas

A mouse population starts with 2,000 mice and grows at a rate of 5% per year. The number of mice after t years can be modeled by the equation, P(t)=2000(1.05)^t
what is the cell cycle??
A ski jumper competing for an Olympic gold medal wants to jump a horizontal distance of 135 meters. The takeoff point of the ski jump is at a height of 25 meter
Many colonial people volunteered to fight for the Allied forces because they hoped their service would win their colony's ____
what It Trigonometry ?
Jonathan has been on a diet since January 2013. So far, he has been losing weight at a steady rate. Bases on monthly weigh-ins, his weight, w, can be modeled by
How can b^2+9b+14 be re-written?1) (b+7) (b-7)2) (b-7) (b-2)3) (b+7) (b-2)4) (b+7) (b+2)
What is the product of (x+1) and (2x^2+3x-1)?
solve for x: 2x^2+4x-16+=0
Over what period of time would you expect to see large changes in mountains,canyons,and similar features of the earth?