integration by substitution

∫ 6 x (x² +1 )² dx

• ( x² + 1)³ + C
• 3 ( x² + 1)³ + C
• ( x² + 1)¹ + C
• 6 ( x² + 1)³ + C

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.B.3

∫ 2x cos(x²) dx

• sin(x²) + C

• 2 sin ( 2x ) + C

• (1/2) sin(x²) + C

• 4 cos(2x ) + C

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

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.SSE.B.3

CCSS.HSF.BF.B.5

∫ 2 x (x²- 3)^(1/2) dx

• (x²- 3)^(3/2)+C
• (3/2)(x²- 3)^(3/2)+C
• (2/3)(x²- 3)^(3/2)+C
• (2/3)(x²- 3)^(-1/2)+C

Tags

CCSS.HSA.APR.A.1

CCSS.HSN.RN.A.2

∫ 2x cos(x²) dx

• sin(2x) + C
• 2 sin ( 2x ) + C 
• (1/2) sin(2x) + C 
• 4 cos(2x ) + C

∫(3x⁴+2)⁴(12x³)dx

• ½(3x⁴+2)⁴+C
• (3x⁴+2)⁴+C
• ⅕(3x⁴+2)⁵+C
• ⅓(3x⁴+2)⁶+C

Tags

CCSS.HSA.APR.A.1

What is the choice of substitution for ∫ e^x(1+e^x)^(1/2) dx?

• e^x

• 1+e^x

• (1+e^x)^(1/2)

• (e^x)^(1/2)

 $\int\cot x.\log\sin xdx=$  

•  $\left(\log\cot x\right)^2+c$  

•  $\left(\log\sin x\right)^2$  

•  $\left(\log\cos x\right)^2$  

• None of these

Use substitution to evaluate the integral $\int4\sec^24x\ \sqrt{\tan4x}\ dx$

• $2\left(\tan4x\right)^{\frac{3}{2}}+C$

• $\frac{15}{4}\cdot\left(\tan4x\right)^{\frac{4}{3}}+C$

• $\frac{4}{3}\cdot\left(\tan4x\right)^{\frac{3}{2}}+C$

• $\frac{2}{3}\cdot\left(\tan4x\right)^{\frac{3}{2}}+C$

 $\int_{ }^{ }\left(\frac{dx}{\sin^2x\ \cos^2x}\right)$  

• tanx - cotx +c

• cotx - tanx + c

• tanx - cotx

• cotx - tanx