Mathematics, 30.09.2019 12:30 qiuedhg
Find the exact values of sin(2θ), cos(2θ), and tan(2θ) given sec(θ) = − 15/9 and θ is in the interval [pi/2, pi]
i have cos(2theta) which is -7/25 but i miscalculated the other values.
Answers: 1
, so 
. We're told that 
, for which we expect to have 
and so we take the positive square root. Also recall that 3-4-5 is a Pythagorean triple. Then
Another question on Mathematics
Mathematics, 21.06.2019 18:40
Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form: science fiction books to history books 2. write the ratios as fractions: dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.
Answers: 1
Mathematics, 21.06.2019 20:20
The polynomial 10x3 + 35x2 - 4x - 14 is factored by grouping. 10x3 + 35x2 - 4x - 14 5x )-20 what is the common factor that is missing from both sets of parentheses?
Answers: 2
Mathematics, 21.06.2019 21:30
If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2
Answers: 2
You know the right answer?
Find the exact values of sin(2θ), cos(2θ), and tan(2θ) given sec(θ) = − 15/9 and θ is in the interva...
Questions
Mathematics, 16.12.2020 02:10
Mathematics, 16.12.2020 02:10
Mathematics, 16.12.2020 02:10
Health, 16.12.2020 02:10
Mathematics, 16.12.2020 02:10
Physics, 16.12.2020 02:10
Mathematics, 16.12.2020 02:10
Mathematics, 16.12.2020 02:10
Social Studies, 16.12.2020 02:10
Arts, 16.12.2020 02:10
Mathematics, 16.12.2020 02:10
Arts, 16.12.2020 02:10
Biology, 16.12.2020 02:10
