\int\frac{dx}{\cos(x+4)\cos(x+2)}=

Correct Answer is : 1sin2log|sec(x+4)sec(x+2)|+c

1/{sin2}\text{\log}|\cos(x+4)^2|+c

1/2\text{\log}|\frac{\sec(x+2)}{\sec(x+4)}|+c

1/{sin2}\text{\log}|\frac{\sec(x+4)}{\sec(x+2)}|+c

\text{\log}|\frac{\sec(x+4)}{\sec(x+2)}|+c

TS EAMCET 2016 Code A Solved Paper

Section: Mathematics

Question : 73 of 160

Marks: +1, -0

∫

cos(x+4)cos(x+2)

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