Evaluate the integral.
dx
A. 
+ C
B. ecos-1 x + C
C. -esin-1 x + C
D. 
+ C
Answer: B
Mathematics
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Find the triple scalar product (u x v) ? w of the given vectors.u = 4i + 2j - k; v = 1i + 5j - 3k; w = 5i + 3j - 6k
A. -44 B. -52 C. -142 D. -80
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Find the sum.-1.8 + (-4.4) + 3.1
A. -0.5 B. -9.3 C. -3.1 D. 5.7
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Simplify.
A. 
B. 
C. 
D. y11z13
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Solve the equation.3(4x + 7) = 2(x + 7)
A. - 
B. - 
C. 10
D. -7
Mathematics