Verify the identity. sin2x/cosx +

Verify the identity.sin2x/cosx + sinx = 2sinx Solve for all values of x: 6cos2x-7cosx-3=0 If f(x)=cos1/2x-sin2x find the value
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2. asked by .
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Verify the following identity:(sin2x)/sin - (cos2x)/cosx=secx
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2. asked by Serena
3. 742 views
Verify the following identitycos2x/sin2x+sinx/cosx=csc2x
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2. asked by Lizzy
3. 1,116 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. 1,247 views
hey, i would really appreciate some help solving for x when:sin2x=cosx Use the identity sin 2A = 2sinAcosA so: sin 2x = cos x
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2. asked by elle
3. 720 views
Verify the trigonometric identity:[(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I can't figure this out.
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2. asked by Matt
3. 666 views
Verify the trigonometric identity:[(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I still can't figure this out.
1. 2 answers
2. asked by Matt
3. 1,317 views
Verify the identity:sin^(1/2)x*cosx - sin^(5/2)*cosx = cos^3x sq root sin x I honestly have no clue how to approach the
1. 1 answer
2. asked by Zee
3. 723 views
verify that the equation is an identity:(1-cosX)/(1+cosX) = (cscX-cotX)^2
1. 3 answers
2. asked by Haley
3. 660 views
If secx = 8 and -pi/2 < x < 0, find the exact value of sin2xUse the identity sin 2x = 2(sinx)(cosx) if secx = 8, then cosx = 1/8
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2. asked by Ashley
3. 1,168 views