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Q29 of 39 Page 1

If find Using solve the system of equation

Given
















Then the given equations can be written as:






∴ x = 2, y = 3, z = 5 is the required solution.


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21

Using vectors find the area of triangle ABC with vertices A(1, 2, 3), B(2, -1, 4), and C(4, 5, -1).

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A metal box with a square base and vertical sides is to contain 1024 cm3. The material for the top and bottom costs ` 5 per cm2 and the material for the sides costs ` 2.50 per cm2. Find the least cost of the box.

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If then find

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Show that the family of curves for which is given by

Questions · 39
Delhi-2017
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