Verify tanxsin2x = 2-2cos^2x

Verify tanxsin2x = 2-2cos^2x
1. 1 answer
2. asked by Jake
3. 2,152 views
How do you proove the identitytanxsin2x = 2-2cos^2x
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2. asked by Rachel
3. 604 views
verify the identitysin x(1 - 2 cos^2 x + cos^4 x) = sin^5 x 1-2cos^2 x looks like 2cos^2x-1 its just backwards. I am not sure
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2. asked by Hannah
3. 712 views
Verify this identity. How would you prove it(sin^3(x)+cos^3(x))÷(1-2cos^2(x)) = (sec(x)-sin(x))÷(tan(x)-1)
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2. asked by Beatrice
3. 544 views
SIMPLIFY1. ((x/4)-(1/x)) / ((1/2x)+(1/4)) VERIFY 1. secXsin2X = (2-2cos^2X)/sinX
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2. asked by Leslie
3. 1,015 views
use an angel sum identity to verify cos2theta = -2cos^@-1
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2. asked by cooper roschuk
3. 353 views
Verify the identity:tanx(cos2x) = sin2x - tanx Left Side = (sinx/cosx)(2cos^2 x -1) =sinx(2cos^2 x - 1)/cosx Right Side = 2sinx
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2. asked by Ashley
3. 1,246 views
Verify Identity:cos5x-cos3x=-8sin^2x(2cos^3x-cosx)
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2. asked by Erik
3. 563 views
How do I do these problems?Verify the identity. a= alpha, b=beta, t= theta 1. (1 + sin a) (1 - sin a)= cos^2a 2. cos^2b - sin^2b
1. 2 answers
2. asked by Anonymous
3. 1,658 views
cosA= 5/9 find cos1/2Aare you familiar with the half-angle formulas? the one I would use here is cos A = 2cos^2 (1/2)A - 1 5/9 +
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2. asked by Anonymous
3. 814 views