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Trigonometric Identities Identities Trig Functions

01/03/15

Find all values of theta in the interval from 0 to 360 that satisfy the equation 2sin squared theta plus sin theta=1

Find all values of Θ that satisfy in the interval 0≤Θ≤360 that satisfy the equation 2sin2Θ+sinΘ = 1 Having trouble with this homework problem, and my notes don't help. Thank you!

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Trigonometric Identities Trigonometric Formulas

12/03/14

Cos/1+sin + 1+sin/cos = 2sec

I thought it could possible be solved by a double angle formula, but I cant seem to make it work

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Trigonometric Identities

11/30/14

angle x lies in second quadrant and tan x =-5/4. Determine sin2x and tan 2x

NO OTHER ADDITIONAL DETAILS

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Trigonometric Identities Trigonometric Inverses

11/16/14

Can someone explain this problem to me and/or at least get me started?

I have no idea what half of the words are in this problem, much less how to solve it. I'm not sure what equation(s) I would use to work it as well. If it's any hint we're working on trigonometric... more

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Trigonometric Identities

11/15/14

(1-cos2t)/sin^2t = 2cot^2t

could u prove this please

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Trigonometric Identities

11/15/14

((tan2x)(1+tanx))/tanx = 2/(1-tanx)

can u please help me to prove this rhs=lhs

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Trigonometric Identities

11/08/14

please, prove that (1-2cos^2x)/(sinx*cosx) = tanx-cotx

I'm stumped on this one! help please!

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Trigonometric Identities

11/05/14

How do I answer this trig identity?

ln|1+cos(theta)|+ln|1-cos(theta)| = 2ln|sin(theta)|

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Trigonometric Identities Trigonometry

10/26/14

Establish the given identity

Sin(A-B) / (SinASinB) = CotB - CotA

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Trigonometric Identities Calculus Trigonometry Tangents And Derivatives

10/21/14

Calculus Question: Tangents on Polar Coordinate of Polar Curve r=cos(theta)+sin(theta)

How do I find the polar coordinates of the points on the polar curve r=cos(theta)+sin(theta), 0(greater than or equal to)(theta)(less than or equal to)(pi), where the tangent line is horizontal or... more

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Trigonometric Identities Trigonometry

10/19/14

Prove the equation

csc / (1 + csc) = (1 - sin) / cos^2

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Trigonometric Identities Trigonometry Intermediate Value Theorem

10/10/14

Difficulty with the Intermediate Value Thereom

True or False and explain: there is at least one point x between 0 and π/2 where cos(x)+sin(x)=x^2. Should I try plugging in the two numbers given into the equation or do I need to simplify the... more

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