cosA = 1/8 with A

I need to prove that the following is true. Thanks.csc^2(A/2)=2secA/secA-1 Right Side=(2/cosA)/(1/cosA - 1) =
1. 0 answers
2. asked by Dirk
3. 948 views
Prove that [sinA/(1-cosA)-(1-cosA)/sinA]*[cosA/(1+sinA)+(1+sinA)/cosA]=4cosecAI the second part as 2 secA
1. 1 answer
2. asked by Agastya
3. 721 views
Given that sinA=2/5 and that A is obtuse,find the value of cosA.👍 0 👎 0 👁 25 asked by Raj yesterday at 4:18am sinA =
1. 1 answer
2. asked by Raj
3. 1,193 views
Hi, can someone give me the answer to this question:secA-tanA=1/4. Find cosA I got: CosA=4(1-sinA) Is my answer good? Now
1. 2 answers
2. asked by Shym
3. 909 views
Let P=(cosA sinA)(sinA cosA) Q=(cosB sinA) (sinB cosA) show that PQ=(cosA(A-B) sin(A B)) (sinA(A B) cos(A-B))
1. 0 answers
2. asked by James
3. 700 views
Hello I am having trouble with proving this:sinA/secA+secA/cscA = tan(A)(2-sin^2(A)) So far I've gotten SinA/(1/cosA) +
1. 1 answer
2. asked by Jimbo
3. 786 views
Can someone please check my work?Answer the following questions in a complete sentence. 1. ¿Qué es la primera cosa que haces
1. 1 answer
2. asked by Larry
3. 1,621 views
If 1-cosA=5/13, prove that 25sinA(sinA - cosA)
1. 1 answer
2. asked by Dipankar
3. 468 views
Choose the grammatically correct sentence.A. Está cosa es un lápiz amarillo.<<X B. Esta cosa es un lápiz amarillo. C. Esta
1. 2 answers
2. asked by anon
3. 1,192 views
CosA/1+sinA=1-sinA/cosAI have to prove the identity each side has to b the same how would i do that? I have a unit test on
1. 5 answers
2. asked by Kristien
3. 606 views