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Suppose sinA = 12/13 with
Please help with this one. I've worked it out in so many ways and can't tell what's correct.
sinA sinA ----- - ------ 1+sinA
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asked by
Jasmine
668 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
2 answers
asked by
Shym
909 views
In any angle ABC prove that the perimeter = a/Sin A(Sin A + Sin B + Sin C)
Start with perimeter = a+b+c but b= aSinB/sinA and c=
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asked by
Anonymous
518 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 answer
asked by
Jimbo
786 views
find all solutions in the interval [0,2 pi)
sin(x+(3.14/3) + sin(x- 3.14/3) =1 sin^4 x cos^2 x Since sin (a+b) = sina cosb + cosb
1 answer
asked by
lauren
838 views
Suppose sinA = 12/13 with 90º≤A≤180º. Suppose also that sinB = -7/25 with -90º≤B≤0º. Find cos(A - B).
2 answers
asked by
Molly
1,334 views
Suppose sinA = 12/13 with 90º≤A≤180º. Suppose also that sinB = -7/25 with -90º≤B≤0º. Find cos(A - B).
0 answers
asked by
Anonymous
510 views
Suppose sinA = 12/13 with 90º≤A≤180º. Suppose also that sinB = -7/25 with -90º≤B≤0º. Find cos(A + B).
0 answers
asked by
TeeKay
586 views
Suppose sinA = 12/13 with 90º≤A≤180º. Suppose also that sinB = -7/25 with -90º≤B≤0º. Find cos(A - B).
0 answers
asked by
TeeKay
559 views
Verify/prove the following:
(sinA+tanA)/(1+secA) = sinA ______________________________ tanu = 1+sinu-cos^2u/cosu(1+sinu)
1 answer
asked by
Kid
718 views