Q.1// (A) Use trigonometric substitution to find f- x²-2x-5 x3-5x² (B) Use partial fraction to find ſ 1 x√x²+3 Q.2// Find (A) f sin¹ (x) cos5(x) dx (B) f 4t³ - t² +16 t dt t² +4 (C) Use improper integral to find ſ -2 2x dx 0 x²-4 dx

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Q: 149. Determine the real number a such that vectors a = 2i +3j and b=9i+aj are orthogonal.

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Q: Given cost and price (demand) functions and C(q) = 115q + 31000 and p(q) = -2.3q +800, what price…

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