subject
Mathematics, 02.04.2021 04:00 backkennedi

PLEASE NEED HELP, don't understand it and been at it for hours given the equation for cos (a + b) determine what the cos(2a)=? *hint think of a way to represent 2a by adding*​

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 18:30
Which statement justifies why angle ebc measures 90?
Answers: 3
question
Mathematics, 21.06.2019 19:30
Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.
Answers: 1
question
Mathematics, 21.06.2019 23:30
Adele is five years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adeleβ€˜s current age?
Answers: 1
question
Mathematics, 22.06.2019 01:50
Thomas is using a drawing program to complete a construction. which construction could he be completing? two perpendicular lines are drawn. inscribing an equilateral triangle in a circle inscribing a square in a circle inscribing a regular pentagon in a circle inscribing a regular hexagon in a circle
Answers: 1
You know the right answer?
PLEASE NEED HELP, don't understand it and been at it for hours given the equation for cos (a + b) d...
Questions
question
Mathematics, 11.12.2020 02:20
question
Biology, 11.12.2020 02:20
question
Arts, 11.12.2020 02:20
question
Mathematics, 11.12.2020 02:20
question
Mathematics, 11.12.2020 02:20
question
Mathematics, 11.12.2020 02:20