2cos^2(theta) + Sin(theta)=1 I know

Which expression equivalent to: cos(theta + pi/2).A)cos theta B)-cos theta C)sin theta D)-sin theta my book doesnt give examples
1. 3 answers
2. asked by Jon
3. 2,032 views
Find circumference of the circle r=2acos theta.s= Int (0 to 2pi) of Sqrt(4a^2cos^2 theta+4a^2sin^2 theta)d theta =Int (0 to
1. 3 answers
2. asked by ms
3. 1,068 views
Solve the following interval0<_ (less than or equal to)0(Theta)<2pi: 1. sin0(theta) + sin2 0(theta) = 0 2. 2cos^20 (theta) +
1. 1 answer
2. asked by Kay
3. 787 views
Prove the following identities:1. (tan theta - sin theta)^2 + (1-cos theta)^2 = (1-sec theta) ^2 2. (1-2cos^2 theta) / sin theta
1. 1 answer
2. asked by Fern Angel
3. 927 views
Prove the following identities:1. (tan theta - sin theta)^2 + (1-cos theta)^2 = (1-sec theta) ^2 2. (1-2cos^2 theta) / sin theta
1. 1 answer
2. asked by Fern Angel
3. 750 views
Multiple Choice (theta) means the symbol 0 with the dash in it.1.)Which expression is equivalent to
1. 2 answers
2. asked by HotMath
3. 1,438 views
Multiple ChoiceWhich expression is NOT equivalent to 1? (theta) means 0 with dash in it. A.)sin^2 (theta)+cot^2 (theta) sin^2
1. 0 answers
2. asked by HotMath
3. 788 views
I am having problems with proving identities that has a number and an exponent with it.Like: *2cosxcsc2x = cscx *sin^2 2x =
1. 1 answer
2. asked by Jam
3. 812 views
Suppose that \Theta takes values in [0,1] and its PDF is of the formf_{\Theta }(\theta )= a\theta (1-\theta )^2,\ \ \
1. 1 answer
2. 334 views
Solve the equation on the interval 0 less than or equals theta less than 2 pi 0≤θ<2π. 2cos^(2)\theta +\sqrt(2cos\theta
1. 1 answer
2. asked by Yana
3. 626 views