Mathematics, 26.10.2019 16:43 ilovejustinbieber42
Prove that cos(a-b) - cos(a+b) = 2sina sinb
Answers: 3
Mathematics, 21.06.2019 16:30
One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.
Answers: 3
Mathematics, 21.06.2019 17:00
The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?
Answers: 1
Mathematics, 21.06.2019 19:30
Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.
Answers: 1
Prove that cos(a-b) - cos(a+b) = 2sina sinb...
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