A few days ago
ladyofschool

find the derivative of h(x)=sin 2x cos 2x?

the answer given in the back of the text book is 2 cos(4x).

i need to see the WORK SHOWN to reach this answer from the above question. thank you.

🙂

Top 1 Answers
A few days ago
Anonymous

Favorite Answer

The simplest method is to use the formula:

sin(2a) = 2sin(a)cos(a).

Thus:

h(x) = sin(2x)cos(2x)

= sin(4x) / 2

h'(x) = 4cos(4x) / 2

= 2cos(4x).

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