katiefromm1 katiefromm1
  • 19-06-2021
  • Mathematics
contestada

URGENT PLEASE HELP: 1 - 2 cos^2r = - sin^2r - 1

True
False

URGENT PLEASE HELP 1 2 cos2r sin2r 1 True False class=

Respuesta :

surjithayer10otahza surjithayer10otahza
  • 19-06-2021

Answer:

false

Step-by-step explanation:

1-2cos²r=1-2(1-sin²r)=1-2+2sin²r=2sin²r-1

Answer Link

Otras preguntas

write a program in pascal to solve a quadratic equation
I am a number between 500 and 600. My Ones digit is 5. My tens digit is the difference between my ones and hundreds digits. Who am i
what is a rational number between -1/6 and -2/6
What are the organelles of a cone cell?
Caitlyn did 6/7 of the problems on her math correctly and 4 incorrectly. She did all the problems. How many were there?
Peter jogged 96 yards in 40 seconds? What is his speed in feet per second?
Ned weighs 1.5 times as much as Jill and Tom weighs 15 kilograms more than Jill. If their combined weight is 190 kilograms, how much does each person weigh?
What are the organelles of a cone cell?
Name four behaviors that animals must use to survive
Name four behaviors that animals must use to survive