9(tan(2a)+2cos(a)=0 interval 0 less than or equal to a less than or equal to 2piSolve each equation...trig equations for linear sin and cos
Graph this:y greater than or equal to 2x-32x-2y is less than or equal to 12x-2y is less than or equal to 12x is less than or equal 2yx is less than or equal yhow do u graph this? how to graph x is less than or equal to y?
Let sin alpha = 5/13 where 90° is less than or equal to alpha is less than or equal to 180° and cos beta = -24/25 where 180° is less than or equal to beta is less than or equal to 270° Find cos (alpha - beta) and tan (alpha + beta)
Solve the following equation for 0 less than and/or equal to "x" less than and/or equal to 360--cos^2x - 1 = sin^2x--Attempt:cos^2x - 1 - sin^2x = 0cos^2x - 1 - (1 - cos^2x) = 0cos^2x - 1 - 1 + cos^2x = 02cos^2x - 2 = 0(2cos^2x/2)= (-2/2)cos^2x = -1cosx = square root of -1And I can't do anything...
If a+b is less than c+d, and d+e is less than a+b than e is (1)less than c (3)less than d(2)equal to c (4)greater than d
If α and β are two angles in Quadrant II such that tan α= -1/2 and tan β = -2/3, find cos(α+β)Work:cos(α+β) = [ 1 - (tan α)(tan β) ] / [ 1 + (tan α)(tan β)]cos(α+β) = [ 1 - (-1/2)(-2/3) ] / [ 1 + (-1/2)(-2/3)]cos(α+β) = [ 1 - 1/3 ] / [ 1 + 1/3 ]cos(α+β)...
what would be the anser to this question: find x is greater than or equal to zero and y is greater than or equal to zero such that x + y is less than or equal to 10 and 5x +2y is greater than or equal to 20 and 2y is greater than or equal to x and x +...
Pi, what are the zeros ofy= cos x
Select the point which is in the feasible region of the system of inequalities 4x+y is greater than or equal to 8 2x+5y is greater than or equal to 18 x is less than or equal to 0, y is less than or equal to 0
sketch the feasible region for this system of the inqualities and find the coordinates of each vertex:y greater than or equal to 1;x less than or equal to 2; -1x+2y less than or equal to 6;1x+2y greater than or equal to 2
Find k so that the following function is continuous on any interval:f(x)= kx 0 (less than or equal to) x (less than) 23x^22 (less than or equal to x)i know the answer is 12 but i don't know how to arrive at that. could you please walk me through the steps? thanks.
identity: tan2a+sin2a/2cos^2a= =2sinacosa/2cos^2a =2sina+sqr1-cos^2a/2cos^2a =???? ans: 1. sin1+cos2a 2. tan2a 3. cos^2a-sin^2a 4. cot2a 5. 0
Solve each equation for 0 is less than and equal to "x" is less than and equal to 3603sinx = 2cos^{2}x-----I don't know how to solve this equation...this is what I have, but I don't know if I'm on the right track or not3sinx = 1 - 2sin^{2}x3sinx - 1 + 2sin^{2}x = 02sin^{2}x + 3sinx - 1 = 0sinx(3...
solve the given inequality and graph its solution on the number line2-x/3less than or eqaul to (</) 3-2x/5lxl less than or equal to 52 is less than or eqaul to lx-6l less than or equal to 5
If two sides of a triangle have lengths 4 and 9, then the length of the third side may be any number a) less than 13 b) greater than 5 but less than 13 c) greater than 4 but less than 9 d) greater than 5 I suggest you draw this. It is not d, nor a.it is b. Am...
find i six digit number in wich the first digit is one less than the second, the secound one less than the third, the fourth digit is one less than the fifth, and the fifth one is one less than the last. the second digit equals the sum of the last three digits and the third digit equals the sum...