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Verify tanxsin2x = 2-2cos^2x
Verify tanxsin2x = 2-2cos^2x
1 answer
asked by
Jake
2,152 views
How do you proove the identity
tanxsin2x = 2-2cos^2x
1 answer
asked by
Rachel
604 views
verify the identity
sin 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
1 answer
asked by
Hannah
711 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)
1 answer
asked by
Beatrice
544 views
SIMPLIFY
1. ((x/4)-(1/x)) / ((1/2x)+(1/4)) VERIFY 1. secXsin2X = (2-2cos^2X)/sinX
2 answers
asked by
Leslie
1,015 views
use an angel sum identity to verify cos2theta = -2cos^@-1
1 answer
asked by
cooper roschuk
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
0 answers
asked by
Ashley
1,245 views
Verify Identity:
cos5x-cos3x=-8sin^2x(2cos^3x-cosx)
1 answer
asked by
Erik
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
2 answers
asked by
Anonymous
1,658 views
cosA= 5/9 find cos1/2A
are 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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asked by
Anonymous
813 views