Mathematics, 20.12.2019 19:31 rafamoreura
Verify that: cos(x+y)cos(x-y)=cos^2x-sin^2y
using trig idenities, i can get to: cos^2xcos^2y-sin^2xsin^2y but i can't figure out how to get rid of sin^2x and cos^2y. anybody?
Answers: 3
Mathematics, 21.06.2019 16:40
Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5
Answers: 1
Mathematics, 21.06.2019 18:30
Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?
Answers: 1
Mathematics, 21.06.2019 21:00
Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?
Answers: 3
Verify that: cos(x+y)cos(x-y)=cos^2x-sin^2y
using trig idenities, i can get to: cos^2x...
using trig idenities, i can get to: cos^2x...
Mathematics, 22.10.2020 03:01
History, 22.10.2020 03:01
English, 22.10.2020 03:01
Biology, 22.10.2020 03:01
English, 22.10.2020 03:01
History, 22.10.2020 03:01
Mathematics, 22.10.2020 03:01
English, 22.10.2020 03:01
Mathematics, 22.10.2020 03:01
Computers and Technology, 22.10.2020 03:01
Mathematics, 22.10.2020 03:01
Mathematics, 22.10.2020 03:01
Mathematics, 22.10.2020 03:01
Mathematics, 22.10.2020 03:01
English, 22.10.2020 03:01