269 Answered Questions for the topic trigonometric identities
01/06/14
Find all solutions in the interval [0,2pi): sin2x=cosx
This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!
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01/06/14
Find all solutions in the interval [0,2pi): tan^2x+(sqrt3 - 1)tanx-sqrt3 = 0
This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!
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01/06/14
Write sin(sin^-1x-cos^-1x as an algrebraic expression in x.
This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!
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01/06/14
Find the value of the other five trigonometric functions, given tanx= 4/11, secx<0.
This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!
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01/05/14
Use the quadratic formula to find all solutions in the interval [0,2pi): tan^2x-6tanx+4=0
This is for my trig class, thanks for the help!
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01/05/14
Verify: sin9x+sin5x/cos9x-cos5x=cot2x
This is for my trig class, thanks for the help!
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01/05/14
Verify tan^4x+2tan^2x+1=sec^4x
This is for my trig class, thanks for the help!
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01/05/14
Verify: 1+cosx/sinx+sinx/1+cosx=2cscx
This is for my trig class, thanks for the help!
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01/03/14
Use the half angle formulas to determine.
A. sin22.5 degrees
and
B. tanpi/12 degrees
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01/03/14
Given sintheta=4/5, theta lies in Quadrant II, find cos (theta/2)
This is for my trig class. Thanks for the help!
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01/03/14
Use the power reducing identities to write sin^2xcos^2x in terms of the first power of cosine.
This is for my trig class. Thanks for the help!
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01/03/14
Rewrite 6(sin5x)cos2x
This is for my trig class. Thanks for the help!
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01/03/14
Rewrite sin(x+pi)+sin(x-pi) as a product.
This is for my trig class. Thanks for the help!
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12/31/13
Factor and simplify: sin^4x + (sin^2x)cos^2x
This is for my trig class. Thanks for the help!
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12/12/13
Verify the identity cos^3xsin^2x = (sin^2x-sin^4x)cosx
This is for my trig class, and the directions say to verify the identity. Thanks so much.
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12/12/13
Verify the identity tanx+coty/tanxcoty = tany+cotx
This is for my trig class, and the directions say to verify the identity. Thanks for the help!
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12/12/13
2sec^x-2sec^2x sin^2x
i've done problems like this before, but i was always able to change a term to cancel out something
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Trigonometric Identities
12/08/13
prove the following trigonometric identity
sinx÷ cscx + cosx÷ secx=1
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Trigonometric Identities
12/04/13
(cos^2x+1+sinx)/(cos^2x+3)=(1+sinx)/(2+sinx)
I'm asked to verify this identity. I've been going at it for a hour now with no successful results.
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