math
please help me with this proving question prove that 4cos(theta) * cos(theta + 120) * cos(theta - 120) = cos(3theta) PLEASE HELP THANKS
Algebra2/Trig
sqr(x^2-4)+(x^2)/x^2+1 I got ((x^2+1)*sqr(x^2-4)+x^2)/x^2+1 But my teacher gave (sqr(x^2-4)+x^2)/x^2+1 I did the problem over again but I can't figure out why my teacher got the answer. Can someone confirm that my teacher is right or am I right? sqr=square root ^=to the po...
Algebra2/Trig
Evaluate the indicated function for f(x)=x2+1 and g(x)=x-4 Note: x2+1 means x squared plus one. (2f)(5)
Business Law
Why is personal jurisdiction an issue for those who post Websites?
Maths
x-1/2-x-2/3=1
math of investment
9765.25
Science
It would be Calcite due to the weight of the element.
Grade 10 MATH
17^115
scince
It would be 3.14 inches
Earth Science
It would be silt due to the weight of the particles...
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