Prove the identities 1. cos3Ɵ

Prove the identities1. cos3Ɵ + cos Ɵ = 4cos^Ɵ - 2 cos Ɵ 2. sin (A+B)sin (A-B)=cos2B + sin^2 A-1
1. 1 answer
2. asked by Anonymous
3. 578 views
Select all the true statements about identities.A) You may use proven identities to prove other identities. B) An identity is
1. 0 answers
2. asked by TeeKay
3. 766 views
Prove the identities:(sin^2x-1)^2 = cos(2x)+sin^4x
1. 1 answer
2. asked by Michael
3. 383 views
Prove the following Identities(1-cos^2X)csc^2X=1
1. 3 answers
2. 214 views
Prove the following identities [6 marks]cos 𝑥 cot 𝑥 = 1 𝑠𝑖𝑛𝑥 − 𝑠𝑖𝑛�
1. 1 answer
2. asked by khaled
3. 236 views
Prove the following trigonometry identities𝑠𝑒𝑐𝜃√(1 − 𝑠𝑖𝑛2𝜃) = 1
1. 11 answers
2. 181 views
Prove the following trigonometry identities1. (1 − 𝑐𝑜𝑠2𝜃)𝑐𝑠𝑐2𝜃 = 1 2.𝑠𝑒𝑐𝜃√(1 −
1. 1 answer
2. 173 views
Prove Trig. Identities1. sec è (sec è - cos è)= tan^2 è 2. tan^2 è (1 + cot^2 è) = sec^2 è
1. 0 answers
2. asked by Priscilla
3. 614 views
Prove the following identities:a) (cosec θ + cotθ)(cosecθ - cotθ) = cotθtanθ b) 2/(1 + sinθ) + 1/(1- sinθ) = (3sec^2)θ
1. 2 answers
2. asked by Proving Identities Question (Trig.)
3. 748 views
Prove the following identities in a Kleene algebra.a) (a + bb + ba(b + aa)* ab)* = (a + b(ab*a)* b)* b) a* + a*b(ba*b +ab*a)*
1. 0 answers
2. asked by Winston
3. 459 views