Trig help... equation on the

1. what trig function has an amplitue of 1 and negative values for angles between π/2 and π?2. what trig function never
1. 1 answer
2. asked by anon
3. 913 views
could someone please refresh my memory of the basic trig functions?ex) cos^2 + sin^2 = 1? That is a trig identity.
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2. asked by raychael
3. 612 views
Suppose that z1=6-8i. Find:A. The Trig Form of the complex number z1, where your theta is in degrees. B. The Trig form of z1*z2,
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2. asked by Joshua
3. 625 views
Use the trig Identities to find the other 5 trig functions.Problem 7.)Tan(90-x)=-3/8 8.)Csc x=-13/5 9.)Cot x=square root of 3
1. 3 answers
2. asked by Jennifer
3. 1,369 views
Use trig identities to transform the expression (sec θ)/(csc θ) into a single trig function. Assume θ is acute. Work must be
1. 1 answer
2. asked by John
3. 453 views
i have some problems doing trigthe first one is: Show that cos(x/2) sin(3x/2) = ½(sinx + sin2x) i know that you are supposed to
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2. asked by jacob
3. 1,226 views
How would you solve this trig function:cos2x=sin^2-2 how do you know what trig identities to use?
1. 4 answers
2. asked by Jess
3. 726 views
A right triangle has a hypotneuse of x an adjacent of 9 and an oppisite of 15Solve for x. Round to the nearest tenth. Please
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2. asked by ditto
3. 93 views
Consider the equation 7sin^2x - (4sin2^x)/cosx = -1a) Put the equation in standard quadratic trig equation form. Why is it
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2. asked by Melissa
3. 586 views
How to solve for delta using trig functions? i.e. cosine sine tangent secant Thank youI'm not sure what delta you're referring
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2. asked by Kali
3. 835 views