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If sin A=3/5 and cosB
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
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lauren
866 views
CosA+cosB-cosC=4COSA/2 cosB/2 SINC/2-1
0 answers
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Hansika
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prove 1-cosB divided by 1+cosB= tan^2B/2
0 answers
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Sarah
831 views
Prove that CosB-cosA/cosA+cosB=tanA+B/2tanA-B/2
2 answers
asked by
Yash Rah
1,043 views
Prove that
1-cosA+cosB-cos(A+B)/1+cosA-cosB-cos(A+B) = tanA/2cotA/2
3 answers
asked by
Kewal
1,754 views
If 3 sinb + 5 cosb =5 then show that 3 cosb - 5 sinb =±3
1 answer
asked by
Anonymous
285 views
1-cosA+cosB-cos(A+B)/1+cosA-cosB-cos(A+B)=tan(A/2)ct(A/2)
0 answers
asked by
Kasun
501 views
if cosA = 4/5; sin <0; cosB = 12/13; 0<B<90, determine sin(A-B)
thanks ... :)
9 answers
asked by
Jonathan
917 views
A and B are acute angles such that cosA =3 over 5 and cosB =12 over 13
0 answers
asked by
Michelle
415 views
Given that [sin(A-B)/cos(A+B)]=1/3[tan(A-B)], find the values of cosB if sinA=1/2
1 answer
asked by
Alex
514 views