plzz-help-ne-differentiate-between-sin-2x-1-2-cox-2x-c-is-not-change-to-2sin-x-cos-x-but-b-a-sin-2x-is-change-to-b-a-2sin-x-cos-x-

Question Number 32627 by Cheyboy last updated on 29/Mar/18

p l z z h e l p n e d i f f e r e n t i a t e

b e t w e e n

\int s i n (2 x) = - \frac{1}{2} c o x (2 x) + c

i s n o t c h a n g e t o \int 2 s i n (x) c o s (x)

b u t \underset{b}{\int^{a}} s i n (2 x) = i s c h a n g e t o

\underset{b}{\int^{a}} 2 s i n (x) c o s (x)

Commented by Cheyboy last updated on 29/Mar/18

w h y ? ? ? ?

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