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y= -2cos(pi/6) + 8 whats
y= -2cos(pi/6) + 8
whats the maximum and minimum?
1 answer
asked by
tom
436 views
y= -2cos(pi/6) + 8
whats the maximum and minimum?
2 answers
asked by
tom
454 views
cosA= 5/9 find cos1/2A
are you familiar with the half-angle formulas? the one I would use here is cos A = 2cos^2 (1/2)A - 1 5/9 +
0 answers
asked by
Anonymous
870 views
What am I doing wrong?
Equation: sin2x = 2cos2x Answers: 90 and 270 .... My Work: 2sin(x)cos(x) = 2cos(2x) sin(x) cos(x) =
1 answer
asked by
Anonymous
1,048 views
Determine the solution of the equetion: 2cos x-1=0? 2cos x=0? and 2cos x+1=0?
3 answers
asked by
Miley
548 views
how does 2cos(2x)-2cos(x)sin(x) becomes 2cos(2x)-sin(2x)? Try to explain each step simply.
1 answer
112 views
Identify the equation for the following graph: (1 point) Responses y=2cos(2x) y is equal to 2 cosine 2 x y=−2cos(2x) y is
1 answer
125 views
Multiply then use fundamental identities to simplify the expression below and determine which of the following is not equivalent
1 answer
asked by
Tristian
1,720 views
Which cosine function has maximum of 2, a minimum of -2, and a period of 2pi/3?
Choose from answers below, correct one please. y
1 answer
80 views
verify the identity
sin x(1 - 2 cos^2 x + cos^4 x) = sin^5 x 1-2cos^2 x looks like 2cos^2x-1 its just backwards. I am not sure
1 answer
asked by
Hannah
744 views