MIND FREK INTEGRAL(2)

8sin2xcosxsinxdx

ans-----> sin1(3sinx+cosx)+c

2 Answers

1
" ____________ ·

write sin2x as

(sinx+cosx)2=1+sin2x

sin2x=(sinx+cosx)21

8[(sinx+cosx)21)]cosxsinx

9(sinx+cosx)2cosxsinx

put sinx + cosx = t

cosx - sinx dx = dt

9(t)2dtsin1(3t)

1
Manmay kumar Mohanty ·

got it simple it was.i had not tried it.[4][4]

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