shananay2302
shananay2302 shananay2302
  • 01-07-2020
  • Mathematics
contestada

the value of x is __?

the value of x is class=

Respuesta :

Barrerajocelyn1 Barrerajocelyn1
  • 01-07-2020
If cos x = sin (20 + x ) degrees and 0 degrees < x < 90 degrees , the value of x is ___ degrees
cos x = sin (20 + x)

sin and cos are CO-FUNCTIONS, which means that: cos x = cos [90 - (20 + x)]

cos x = cos (90 - 20 - x)

cos x = cos (70 - x)

Therefore, x = 70 - x

x + x = 70

2x = 70
Answer Link

Otras preguntas

what are three ways water erodes the surface of earth
Your model locomotive is 18 inches long. It is an exact model of a locomotive that is 72 feet long. A window on the locomotive is how many times wider than a wi
What's breed of given cat???Check attachment
on sara's computer, 3/8 of the hard drive is files. Of the files, 1/6 are games . What part of the hard drive is games?
Your model locomotive is 18 inches long. It is an exact model of a locomotive that is 72 feet long. A window on the locomotive is how many times wider than a wi
what type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)
2 ( 4a - 12 ) + 3a = 6a + 1
what are three ways water erodes the surface of earth
what type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)
What were the 4 major truths Jefferson presented in the declaration of independence?