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Find the area of the triangle formed wit...

Find the area of the triangle formed with the points `A(1,2,3), B(2,3,1), C(3,1,2)`.

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SRISIRI PUBLICATION-QUESTION PAPER -Section B
  1. In the two dimensional plane, prove by using vector methods, the equat...

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  2. If bara,barb,barc are non-coplaner, then show that the vectors bara -b...

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  3. Find the area of the triangle formed with the points A(1,2,3), B(2,3,1...

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  4. If bar(a)=2bar(i)+bar(j)-bar(k), bar(b)=-bar(i)+2bar(j)-4bar(k), bar(c...

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  5. Prove that angle in a semi circle is a rightangle by using Vector meth...

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  6. If (sin(alpha+beta))/(sin(alpha-beta)) = (a+b)/(a-b), then prove that ...

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  7. Show that sin A= (sin 3A) /(1+2 cos 2A). Hence find the value of sin 1...

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  8. Show that 1/(sin 10^(@)) - (sqrt(3))/(cos 10^(@)) = 4.

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  9. Show that sin ^(4). (pi)/(8)+ sin ^(4) .(3pi)/(8) sin ^(4). (5pi)/(8)...

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  10. Prove that (1+cos""pi/10)(1+cos""(3pi)/10)(1+cos""(7pi)/10)(1+cos""(9p...

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  11. If cos alpha =(3)/(5) and cos beta =(5)/(13) and alpha, beta are acut...

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  12. If cos alpha =(3)/(5) and cos beta =(5)/(13) and alpha, beta are acut...

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  13. If alpha,beta are the solutions of the equation acostheta+bsintheta=c...

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  14. If alpha,beta are the solutions of the equation acostheta+bsintheta=c...

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  15. If A is not an integral multiple of (pi), prove that cos A cos 2A cos ...

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  16. Solve sin x + sqrt(3) cos x = sqrt(2).

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  17. Solve that sqrt(2)(sinx+cosx)=sqrt(3)

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  18. Solve 2 cos^(2) theta - sqrt(3) sin theta + 1 = 0.

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  19. Solve 2 cos^(2) theta + 11 sin theta = 7.

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  20. Solve sin theta + sin 5 theta = sin 3 theta , 0 lt theta lt pi.

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