iroostin
iroostin iroostin
  • 08-03-2018
  • Mathematics
contestada

Convert this identity to one using sine term(s) only.
1-2cos(r)^2

Respuesta :

demariaa01 demariaa01
  • 08-03-2018
Pythagorean identity:
sin²+cos²=1
Then cos²=1-sin²
Substitute:
1-2cos²
1-2(1-sin²)
1-2+2sin²
2sin²-1
Answer Link

Otras preguntas

A source of wave produces 20 crest sand 20 troughs in 0.4 sec. Find the frequency of the wave.
A pulley with a radius of 8 inches rotates three times every five seconds. Find the angular velocity of the pulley in radians/sec (round to the nearest hundredt
IF YOU ARE A QUIZ MASTER YOU HAVE ASKED TO CONDUCT A PROGRAM FOR A VIDEO SHOW ON SOUND HOW WOULD YOU BEGIN THE SHOW
A picture frame is 16 inches long and 9 inches tall. It is 2 inches wide on all 4 sides. What is the area of the picture frame? Help me pls...
An old woman joined a kilomater dash sprint and felt very exhausted afterwards. How did the old woman affect her heart rate?
Who successfully negotiated the final terms of the treaty of guadalupe hidalgo
Form of energy that exhibits wavelength behavior as it travels through space. Example: Mircrowave rays, U.V. rays.
What was Forced Adoption?
where are albino tigers found
humans are protected from sone infections by specialized cells which produce chemicals that