Trigonometric Integration

[solar bison]

Please help me , I can't move on from this question , the answer will be discuss tomorrow , and I totally don't understand how to actually integrate it whether to use the normal trigonometric integration or we have to use the double angle integration
[ Ignore f) ]

[young canyon]

use a trig reducing identity

[past turret]

these identities are popular when you see a square on a trigonometric function

[solar bison]

oh , what about the +1 ? 😞

[young canyon]

use a u sub

[past turret]

deal with it ;3

[solar bison]

since it was (x+1)

[young canyon]

then apply those formulas

[solar bison]

ohhh okay , let me try it again

[past turret]

goodluck

[solar bison]

I think I've gotten the answer : (x+1)/2 + 1/4 sin ( 2x+2 ) + C

Thank you everyone

[solar bison]

.close