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HOW TO PROVE(1+COS180/8)(1+COS3180/8)(1+COS5180/8)(1+COS7*180/8)=1/8

HOW TO PROVE(1+COS180/8)(1+COS3*180/8)(1+COS5*180/8)(1+COS7*180/8)=1/8
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2. asked by BIMAL
3. 1,617 views
Guys please help me with this Trigonometry question based on De Moivre's theorem.Q: Find ¦È such that 0¡Ü¦È¡Ü360.
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2. asked by Nye
3. 546 views
Verify that following are identities:1. cos 3t = 4 cos³ t-3 cos t 2. sin 4x = 8 sin x cos³ x-4 x cos x (use a double-angle
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2. asked by PDF
3. 753 views
Differentiate g(x) = cos5(4x).
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2. asked by Psy
3. 103 views
State the exact value of cos5𝜋/3
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2. asked by Scott
3. 150 views
Find the exact value of cos7(pi)/12 using sum and/or difference identities.
1. 2 answers
2. asked by Michael
3. 638 views
given that sin (90-5 t ta )=cos180 - t ta...find d value of t ta
1. 3 answers
2. asked by mercy
3. 524 views
Evaluate the integral by making the given substitution. (Use C for the constant of integration.)cos7(𝜃) sin(𝜃) d𝜃, u =
1. 1 answer
2. asked by benny
3. 27 views
Simplify cos180*sin225*cos80/sin170*tan135
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2. asked by kem
3. 525 views
Cos180* - Sin90* + Cot45* - Csc30* - Sec240* - Tan315*How do I do this?
1. 2 answers
2. asked by Victoria
3. 439 views