if sin alfa = 1/2 then prove that (3 cos alfa - 4 cos ^3 alfa) = 0
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अगर पाप अल्फा 1-2 तो साबित होता है कि 3 क्योंकि अल्फा 4 क्योंकि 3 अल्फा 0
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If sinα=12, prove that (3cosα-4cos3α)=0. Solution : cos2α=(1-sin2α)=(1-14)=34⇒cosα=√32.Nov 15, 2019

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If sin alpha =(1)/(2) , prove that (3 cos alpha - 4 cos ^(3) - Doubtnut
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If sin alpha=1/2,prove that(3cos alpha-4cos^3alpha)=0 - Brainly.in
21-Mar-2019 · 2 answers
Sin alpha=1/2, RTP: 3cosalpha - 4 cos^3alpha = 0Now,since sin alpha is = 1/2 we know that sin 30 = 1/2so, alpha = 30now, 3 cos30 - 4 cos ^3 30 ...
21 votes
sin alpha=1/2, RTP: 3cosalpha - 4 cos^3alpha = 0Now,since sin alpha is = 1/2 we know that ... More
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Given. To prove.[tex]3 \cos \alpha - 4 { \cos }^{3} ... More
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If sinalpha=1/2, then 3cos alpha -4cos whole cube alpha= - Brainly.in
30-Jul-2018 · 2 answers
If sinalpha=1/2, then 3cos alpha -4cos whole cube alpha= 2. See answers. Log in to add comment. Answer. 4.5/5. 52. adityaraj91. Ambitious.
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If ` sin alpha =(1)/(2) ,` prove that `(3 cos alpha - 4 cos ^(3) alpha )=0.`
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` (cos^(3) alpha-cos 3alpha )/(cos alpha) + (sin^(3) alpha+ sin 3alpha)/(sin alpha)=3`
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`sin alpha - cos alpha = 1/3` then `sin^4 alpha - cos^4alpha`
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if `A=[[cos alpha, sin alpha],[-sin alpha,cos alpha]] `then show that` A^2=[[cos 2alpha,sin 2a
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`sin alpha + sin 2alpha + sin 4alpha + sin 5alpha=4cos(alpha/2)cos(3alpha/2)sin3alpha`
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If sin ϕ = 1/2, show that 3 cos ϕ - 4cos^3ϕ = 0. - Sarthaks eConnect | Largest Online Education Community
01-Oct-2018 · 1 answer
If sin ϕ = 1/2, show that 3 cos ϕ - 4cos3ϕ = 0.
Missing: alfa) = | Must include: alfa) =
Top answer · 1 vote
sin ϕ = 1/2 ϕ = 30° Substituting this value of θ in LHS More
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If sinα=12 then prove that 3cosα−4cos3α=0. Answer Verified. Hint: In this question, we need to find the value of the cosine function from the given sine function ...
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