﻿ Sina-sinb=2cos(a+b)/2 sin(a-b)/2 and cosa + cosb=2cos(a+b)/2cos(a-b)/2. prove it  , 20.06.2019 18:02, pandamaknae2003

# Sina-sinb=2cos(a+b)/2 sin(a-b)/2 and cosa + cosb=2cos(a+b)/2cos(a-b)/2. prove it ### Other questions on the subject: Mathematics Mathematics, 20.06.2019 18:04, afloareiandrei8615
Use the function value to find the indicated trigonometric value in the specified quadrant. function value quadrant trigonometric valuecsc(θ) = −4 iv cot(θ)cot(θ)=? Mathematics, 21.06.2019 21:00, mawawakaiii
Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award ! Mathematics, 21.06.2019 21:30, bjbass899
40) linda was making chocolate truffles for the first day of school. the recipe for 20 chocolate truffles is: i cup of cream 2 cups of dark chocolate she noticed this will not be enough truffles for the 42 sure that all students in each homeroom next year. to be sure that all students receive a truffle, linda must adjust her recipe. a. complete the recipe for 42 truffles cups of cream - cups of dark chocolate work: Mathematics, 21.06.2019 23:00, gggg79
X-10/4 when x = –18 a 7 b –2 c –7 d 2
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Sina-sinb=2cos(a+b)/2 sin(a-b)/2 and cosa + cosb=2cos(a+b)/2cos(a-b)/2. prove it...

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