Given sina= 3/4 and cosB = (-5)/13 and this is Quad II find cos...

prove that sinA-cosA+1/sinA+cosA-1=1/secA-tanA

Prove : (sinA-cosA+1)/(sinA+cosA-1) = (1+sinA)/cosA

prove 1-cosB divided by 1+cosB= tan^2B/2

if sinA+sinB=x and cosA-cosB=y then find tan[(A-B)/2]

CosA+cosB-cosC=4COSA/2 cosB/2 SINC/2-1

If 1/sinA+1/cosA =1/sinB+1/cosB, prove that: cot(A/2+B/2) = TanA. TanB

If sinA+sinB=1/2 and cosA+cosB=1/2 then the value of tanA+tanB

If sinA=3/5 and cosB=5/13 and if A and B are measures of two angles in Quadrant I, find the exact va...

if sinA=3/5 and cosB=5/13 and if A and B are two acute angles, find the exact value of the following...

If sinA-sinB=x and cosA+cosB=y than tan(A+B/2) is:

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