21) Find the area of a triangle fosmed from the twovectors a = L'+2j-k-.

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A: Second option is correct answer i. e.  I= -1-cosh(π)+π(i-1) . Thankyou !

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A: Let's see the method of integration. We use residue method to solve this integral.

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Q: 6. Find the area and centroidal distances of the curve that lies between the equations y-4-x^2 and…

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