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MODERN PUBLICATION-VECTORS-Exercise
- Prove that in a right angled triangle the mid-point of the hypotenuse ...
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- If two medians of a triangle are equal, prove that the triangle is iso...
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- Which of the following statements are True or False : If the diagonals...
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- Prove that sum of squares of the diagonals of a parallelogram is equal...
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- In any DeltaABC prove by vectors that a^2=b^2+c^2-2 bc cos A.
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- In any DeltaABC prove by vectors that b^2=c^2+a^2-2 ca cos B.
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- In any triangle ABC, then by vectors, prove that : c^2=a^2+b^2-2ab cos...
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- Prove that, in any triangle ABC, cos B=(c^2+a^2-b^2)/(2ca).
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- With the help of vector method, prove that,cosA=(b^2+c^2-a^2)/(2bc)
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- In any triangle ABC, then by vectors, prove that : a=b cos C+c cos B.
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- Use vectors to prove that in triangleABC : b=c cos A+a cos C.
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- Using vector method prove that cos(A-B)=cosAcosB+sinAsinB
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- In any triangle ABC, show that AB^(2)+AC^(2)=2(AD^(2)+BD^(2)) wher...
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- Prove that any two edges in a regular tetrahedron are perpendicular.
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- In each problem, find the work done by a force vecF acting on a partic...
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- In each problem, find the work done by a force vecF acting on a partic...
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- Find the work done by the force vecF=hati+2hatj+hatk acting on a parti...
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- Find the work done in moving an object along the vector vecd=3hati+2ha...
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- A particle acted by constant forces 4 hat i+ hat j-3 hat k and 3 hat...
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- Constant forces 2hati-5hatj+6hatk and hati+2hatj-hatk act on a particl...
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