andreanb4168 andreanb4168
  • 23-01-2018
  • Mathematics
contestada

Simplify the expression by using a double-angle formula. −2cos2π91

Respuesta :

zrh2sfo
zrh2sfo zrh2sfo
  • 23-01-2018
The Answer of −2cos2π91 = is -2 
Answer Link

Otras preguntas

what is 3/14 divided by 4/7? Answers: A 3/8 B 12/21 C 2 and 2/3 D 3/4
what does asterisk mean
the area of a square is 16 cm2. what are its linear dimensions
Define and Compare Boiling point, Melting point, and Freezing point.
a figure consists of a square and a semicircle ,as shown in the diagram below. if the length of the square is 6 , what is the area of the shaded region ?
What is 75.36 rounded to the nearest cubic unit
You fill a balloon with 2.50 moles of gas at 25°C at a pressure of 1.49 atm. What is the volume of the balloon?
The lengths of the legs of a right triangle are 15 cm and 20 cm. What is the length of the hypotenuse?   A.
how to solve 2/3 of 2/3
What is 9/10-3/5 in fractions