Write in terms of the cofunction of a complementary angle.csc (90° - 19°)
A. sec 71°
B. sin 19°
C. sin 71°
D. sec 19°
Answer: D
Mathematics
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Find 
and 
.f(x, y) = x3 + 7x2y + 5xy3
A. 
= 3x2 + 14xy + 5y3; 
= 7x2 + 15xy2
B. 
= 3x2 + 2xy + 5y3; 
= 7x2 + 3xy2
C. 
= x2 + 7xy + 5y3; 
= 7x2 + 5xy2
D. 
= 3x2; 
= 7x2 + 15xy2
Mathematics
Use the properties of logarithms to write the expression as the logarithm of a single expression.4 log x + 8 log y
A. log 
B. log4
C. log x4y8
D. log xy8
Mathematics
Find the value of the determinant.
A. 22 B. -228 C. -22 D. 432
Mathematics
Solve the equation.x-2 - x-1 - 30 = 0
A. {-6, 5}
B. 
C. 
D. {6, -5}
Mathematics