Answer:
8sin(x)cos³(x)
Step-by-step explanation:
sin(4x) +2 sin(2x) = 2sin(2x)*cos(2x) + 2sin(2x) = 2sin(2x)(cos2x + 1)=
= 2sin(2x)(cos²x - sin²x + cos²x + sin²x)=²2sin(2x)*(2cos²x)=
= 4*2sin(x)*cos(x)*cos²(x)= 8sin(x)cos³(x)
Answer:
x = 3
Step-by-step explanation:
1. 5x = 11 +4 (when the negative is moved, it turns positive)
2. 5x = 15
3. divide 15 by 5 and then you get your answer
Answer:
B = G + 7 and B + G = 29
Step-by-step explanation:
Let B = boys and G = girls. There are 7 more boys then girls. Set the equation:
B = G + 7
There are 29 students in total. Set the boys and girls equal to the total amount:
B + G = 29
B = G + 7 and B + G = 29 is your answer.
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Answer:
Step-by-step explanation:
Ok so T = 69
