Intro U Substitution

• A
• B
• C
• D

What should "u" equal in this integral?

• csc(x)

• csc²x

• sin(x)

• cos(x)

• A
• B
• C
• D

• A
• B
• C
• D

Solve for x and y using the substitution method.

5x + 3y = 7

y = 4

• (4,1)

• (4,-1)

• (1,4)

• (-1,4)

Solve the system of equations using substitution:

-4x + 4y = 8

y = -2x - 10

• (-4, -2)

• (12, -34)

• (4, -18)

• (-2, -6)

• (-4, 6)

• A
• B
• C
• D

• ln(2x²+6) + C
• ln(2x²+6)(4x) + C
• 1/(2x²+6) + C
• 1/(2x²+6)² + C

∫ 6 x (x² +1 )² dx

• ( x² + 1)³ + C

• 3 ( x² + 1)³ + C

• ( x² + 1)¹ + C

• 6 ( x² + 1)³ + C

What should "u" equal in this integral?

• x

• (lnx)/x

• lnx

• sin(lnx)