Recall that 2sin(x) cos(x) is actually equal to sin(2x).
We can prove this by expanding sin(2x) to sin(x + x).
sin(x + x) = sin(x) cos(x) + cos(x) sin(x) = 2sinxcosx
Thus, 2sin(x/2)cos(x/2) can be rewritten in the form:
sin(2x/2), and this simplifies down to sinx.
Where are the numbers so that people can help you
Answer:
She now has 7 candies
Step-by-step explanation:
9 x 4 = 12 this the answer
Answer:
972 trees
Step-by-step explanation:
36 times 27
