Choose u

What should "du" equal in this integral?

• tanxsecx dx
• secx dx
• sec²x dx
• tanx dx

What should "u" equal in this integral?

• csc(x)
• csc²x
• sin(x)
• cos(x)

• -cscx cotx
• cscx cotx
• -csc²x
• csc²x

• secx tanx
• -secx tanx
• tan²x
• cscx cotx

Tags

CCSS.HSF.TF.B.7

• secx tanx
• sec²x
• cscx cotx
• -cscx cotx

What should "u" equal in this integral?

• x
• (lnx)/x
• lnx
• sin(lnx)

What should be used for u in the integral?

• no u needed
• 4t²
• t³
• 1/4t²

What should be assigned to u in the integral?

• 2x²
• 4x
• 5x
• no u needed

What should be used for u in the integral?

• tanx
• tan⁴x
• no u needed
• tanx secx

What should be assigned to u in the integral below?
∫(5xsin(2x²))dx

• 2x²
• 4x
• 5x
• no u substitution needed