![If alpha,beta "and" gamma are real number without expanding at any stage prove that |{:(1,cos(beta-alpha),cos(gamma-alpha)),(cos(alpha-beta),1,cos (gamma-beta)),(cos(alpha-gamma),cos(beta-gamma),1):}|=0. If alpha,beta "and" gamma are real number without expanding at any stage prove that |{:(1,cos(beta-alpha),cos(gamma-alpha)),(cos(alpha-beta),1,cos (gamma-beta)),(cos(alpha-gamma),cos(beta-gamma),1):}|=0.](https://d10lpgp6xz60nq.cloudfront.net/question-thumbnail/en_645273247.png)
If alpha,beta "and" gamma are real number without expanding at any stage prove that |{:(1,cos(beta-alpha),cos(gamma-alpha)),(cos(alpha-beta),1,cos (gamma-beta)),(cos(alpha-gamma),cos(beta-gamma),1):}|=0.
![If tan beta =frac{nsin alpha cos alpha }{1-nsin ^2alpha } , prove that tan left(alpha -beta right)=left(1-nright)tan alpha . | Snapsolve If tan beta =frac{nsin alpha cos alpha }{1-nsin ^2alpha } , prove that tan left(alpha -beta right)=left(1-nright)tan alpha . | Snapsolve](https://wb-qb-sg-oss.bytededu.com/mobile/task_240011/1591869873/bfc57ffe-1f87-4e9d-852c-05a096bf38be.jpg!content)
If tan beta =frac{nsin alpha cos alpha }{1-nsin ^2alpha } , prove that tan left(alpha -beta right)=left(1-nright)tan alpha . | Snapsolve
![Find $\cos(\alpha+\beta)$ if $\alpha$, $\beta$ are the roots of the equation $a\cos x+b\sin x=c$ - Mathematics Stack Exchange Find $\cos(\alpha+\beta)$ if $\alpha$, $\beta$ are the roots of the equation $a\cos x+b\sin x=c$ - Mathematics Stack Exchange](https://i.stack.imgur.com/WhA3a.jpg)
Find $\cos(\alpha+\beta)$ if $\alpha$, $\beta$ are the roots of the equation $a\cos x+b\sin x=c$ - Mathematics Stack Exchange
![sin alpha sin beta m and cos alpha cos beta n find tan alpha beta 2 - Mathematics - TopperLearning.com | wlcziqq sin alpha sin beta m and cos alpha cos beta n find tan alpha beta 2 - Mathematics - TopperLearning.com | wlcziqq](https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=9de0e08e81655f376d5be4fcdfc52dce.png)
sin alpha sin beta m and cos alpha cos beta n find tan alpha beta 2 - Mathematics - TopperLearning.com | wlcziqq
![If $\cos (α + β) = 4 / 5$ and $\sin (α – β) = 5 / 13$, where $α$ lie between $0$ and $\pi/4$, find the value of $\tan2α$. - Mathematics Stack Exchange If $\cos (α + β) = 4 / 5$ and $\sin (α – β) = 5 / 13$, where $α$ lie between $0$ and $\pi/4$, find the value of $\tan2α$. - Mathematics Stack Exchange](https://i.stack.imgur.com/a8BWP.jpg)
If $\cos (α + β) = 4 / 5$ and $\sin (α – β) = 5 / 13$, where $α$ lie between $0$ and $\pi/4$, find the value of $\tan2α$. - Mathematics Stack Exchange
Let sin (α - β) = 5/13 and cos (α + β) = 3/5, then tan (2α) is equal to - Sarthaks eConnect | Largest Online Education Community
![Prove that for all ninN Cosalpha+cos(alpha+beta)+cos(alpha+2beta)+ . . . + cos[alpha+(n-1)beta]= (cos[alpha+((n-1)/(2))beta]"sin"((nbeta)/(2)))/("sin"( beta)/(2)) Prove that for all ninN Cosalpha+cos(alpha+beta)+cos(alpha+2beta)+ . . . + cos[alpha+(n-1)beta]= (cos[alpha+((n-1)/(2))beta]"sin"((nbeta)/(2)))/("sin"( beta)/(2))](https://d10lpgp6xz60nq.cloudfront.net/question-thumbnail/en_217274271.png)
Prove that for all ninN Cosalpha+cos(alpha+beta)+cos(alpha+2beta)+ . . . + cos[alpha+(n-1)beta]= (cos[alpha+((n-1)/(2))beta]"sin"((nbeta)/(2)))/("sin"( beta)/(2))
![Let alpha, beta ε [ - pi, pi] be such that cos (alpha - beta) = 1 and cos ( alpha + beta) = 1e , the number of pairs of alpha, beta satisfying the above system of equations is: Let alpha, beta ε [ - pi, pi] be such that cos (alpha - beta) = 1 and cos ( alpha + beta) = 1e , the number of pairs of alpha, beta satisfying the above system of equations is:](https://d2rrqu68q7r435.cloudfront.net/images/9579937/5a46fa27-9349-4e2a-b2a4-34b95409d06f.jpg)
Let alpha, beta ε [ - pi, pi] be such that cos (alpha - beta) = 1 and cos ( alpha + beta) = 1e , the number of pairs of alpha, beta satisfying the above system of equations is:
![If sin alpha + sin beta + sin gamma = cos alpha + cos beta + cos gamma then what is the value of cos^2 alpha + cos^2 beta + cos^2 gamma ? | Socratic If sin alpha + sin beta + sin gamma = cos alpha + cos beta + cos gamma then what is the value of cos^2 alpha + cos^2 beta + cos^2 gamma ? | Socratic](https://useruploads.socratic.org/E13ICBxURLKrJzyqGWAl_socratic.png)