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Wendy Ye
A computer is programmed to print subsets of 1,2,3,4,5,6 at random. If the computer prints 129 su…
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1 day ago
A computer is programmed to print subsets of 1,2,3,4,5,6 at random. If the computer prints 129 su…
![If a, b, c are in A. P. then determinant |[x+2, x+3, x+2a],[x+3, x+4, x+2b],[x+4, x+5, x+2c]|](http://i.ytimg.com/vi/bxjhfOHzYjE/mqdefault.jpg "If a, b, c are in A. P. then determinant |[x+2, x+3, x+2a],[x+3, x+4, x+2b],[x+4, x+5, x+2c]|")
![One root of the equation | x + a, b, c],[b, x + c, a],[c, a, x + b]| = 0 is](http://i.ytimg.com/vi/jsu2fJ_645g/mqdefault.jpg "One root of the equation | x + a, b, c],[b, x + c, a],[c, a, x + b]| = 0 is")
![Prove that |[a - b - c, 2a, 2a],[2b, b - c - a, 2b],[2c, 2c, c - a - b]| = (a + b +c)^3](http://i.ytimg.com/vi/F6Kll3fQIB0/mqdefault.jpg "Prove that |[a - b - c, 2a, 2a],[2b, b - c - a, 2b],[2c, 2c, c - a - b]| = (a + b +c)^3")
![Prove that |[b^2 + c^2, a^2, a^2],[b^2, c^2 + a^2, b^2],[c^2, c^2, a^2 + b^2]| = 4a^2 b^2 c^2](http://i.ytimg.com/vi/IG15iLK0PtI/mqdefault.jpg "Prove that |[b^2 + c^2, a^2, a^2],[b^2, c^2 + a^2, b^2],[c^2, c^2, a^2 + b^2]| = 4a^2 b^2 c^2")
![Show without expanding : |[(a - 1)^2, a^2 + 1, a],[(b - 1)^2, b^2 + 1, b],[(c - 1)^2, c^2, c]| = 0](http://i.ytimg.com/vi/F2NjzxVbU60/mqdefault.jpg "Show without expanding : |[(a - 1)^2, a^2 + 1, a],[(b - 1)^2, b^2 + 1, b],[(c - 1)^2, c^2, c]| = 0")
![Evaluate : |[a + ib, c + id],[-c + id, a - ib]|](http://i.ytimg.com/vi/7viB9a6luLQ/mqdefault.jpg "Evaluate : |[a + ib, c + id],[-c + id, a - ib]|")
